diff --git a/NEWS.md b/NEWS.md
index f727d225..3b27856f 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,3 +1,6 @@
+Red Panda C++ Version 0.14.2
+  - enhancement: file system view mode for project
+
 Red Panda C++ Version 0.14.1
   - enhancement: custom theme
   - fix: failed to show function tip, when there are parameters having '[' and ']'
diff --git a/RedPandaIDE/RedPandaIDE.pro b/RedPandaIDE/RedPandaIDE.pro
index f4db34bf..e6cf01f8 100644
--- a/RedPandaIDE/RedPandaIDE.pro
+++ b/RedPandaIDE/RedPandaIDE.pro
@@ -10,7 +10,7 @@ isEmpty(APP_NAME) {
 }
 
 isEmpty(APP_VERSION) {
-    APP_VERSION=0.14.1
+    APP_VERSION=0.14.2
 }
 
 isEmpty(PREFIX) {
diff --git a/RedPandaIDE/RedPandaIDE_zh_CN.ts b/RedPandaIDE/RedPandaIDE_zh_CN.ts
index d711cb72..47b2defd 100644
--- a/RedPandaIDE/RedPandaIDE_zh_CN.ts
+++ b/RedPandaIDE/RedPandaIDE_zh_CN.ts
@@ -3272,11 +3272,11 @@ Are you really want to continue?</oldsource>
     <message>
         <location filename="mainwindow.ui" line="527"/>
         <location filename="mainwindow.ui" line="2581"/>
-        <location filename="mainwindow.cpp" line="3938"/>
-        <location filename="mainwindow.cpp" line="3941"/>
-        <location filename="mainwindow.cpp" line="3945"/>
-        <location filename="mainwindow.cpp" line="3948"/>
-        <location filename="mainwindow.cpp" line="5512"/>
+        <location filename="mainwindow.cpp" line="3959"/>
+        <location filename="mainwindow.cpp" line="3962"/>
+        <location filename="mainwindow.cpp" line="3966"/>
+        <location filename="mainwindow.cpp" line="3969"/>
+        <location filename="mainwindow.cpp" line="5532"/>
         <source>Issues</source>
         <translation>编译器</translation>
     </message>
@@ -3688,7 +3688,7 @@ Are you really want to continue?</oldsource>
     <message>
         <location filename="mainwindow.ui" line="326"/>
         <location filename="mainwindow.ui" line="329"/>
-        <location filename="mainwindow.cpp" line="5825"/>
+        <location filename="mainwindow.cpp" line="5843"/>
         <source>New Problem Set</source>
         <translation>新建试题集</translation>
     </message>
@@ -3707,14 +3707,14 @@ Are you really want to continue?</oldsource>
     <message>
         <location filename="mainwindow.ui" line="368"/>
         <location filename="mainwindow.ui" line="371"/>
-        <location filename="mainwindow.cpp" line="5868"/>
+        <location filename="mainwindow.cpp" line="5886"/>
         <source>Save Problem Set</source>
         <translation>保存试题集</translation>
     </message>
     <message>
         <location filename="mainwindow.ui" line="382"/>
         <location filename="mainwindow.ui" line="385"/>
-        <location filename="mainwindow.cpp" line="5888"/>
+        <location filename="mainwindow.cpp" line="5910"/>
         <source>Load Problem Set</source>
         <translation>载入试题集</translation>
     </message>
@@ -4053,7 +4053,7 @@ Are you really want to continue?</oldsource>
     </message>
     <message>
         <location filename="mainwindow.ui" line="2259"/>
-        <location filename="mainwindow.cpp" line="4806"/>
+        <location filename="mainwindow.cpp" line="4826"/>
         <source>Clear all breakpoints</source>
         <translation>删除所有断点</translation>
     </message>
@@ -4154,7 +4154,7 @@ Are you really want to continue?</oldsource>
     </message>
     <message>
         <location filename="mainwindow.ui" line="2413"/>
-        <location filename="mainwindow.cpp" line="5463"/>
+        <location filename="mainwindow.cpp" line="5483"/>
         <source>Rename Symbol</source>
         <translation>重命名符号</translation>
     </message>
@@ -4175,13 +4175,13 @@ Are you really want to continue?</oldsource>
     </message>
     <message>
         <location filename="mainwindow.ui" line="2433"/>
-        <location filename="mainwindow.cpp" line="5643"/>
+        <location filename="mainwindow.cpp" line="5661"/>
         <source>Export As RTF</source>
         <translation>导出为RTF</translation>
     </message>
     <message>
         <location filename="mainwindow.ui" line="2438"/>
-        <location filename="mainwindow.cpp" line="5665"/>
+        <location filename="mainwindow.cpp" line="5683"/>
         <source>Export As HTML</source>
         <translation>导出为HTML</translation>
     </message>
@@ -4344,7 +4344,7 @@ Are you really want to continue?</oldsource>
     </message>
     <message>
         <location filename="mainwindow.ui" line="2503"/>
-        <location filename="mainwindow.cpp" line="5804"/>
+        <location filename="mainwindow.cpp" line="5822"/>
         <source>Open Folder</source>
         <translation>打开文件夹</translation>
     </message>
@@ -4354,7 +4354,7 @@ Are you really want to continue?</oldsource>
         <translation>运行参数...</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2758"/>
+        <location filename="mainwindow.cpp" line="2772"/>
         <source>File Encoding</source>
         <translation>文件编码</translation>
     </message>
@@ -4584,7 +4584,7 @@ Are you really want to continue?</oldsource>
     </message>
     <message>
         <location filename="mainwindow.cpp" line="268"/>
-        <location filename="mainwindow.cpp" line="5834"/>
+        <location filename="mainwindow.cpp" line="5852"/>
         <source>Problem Set %1</source>
         <translation>试题集%1</translation>
     </message>
@@ -4658,15 +4658,15 @@ Are you really want to continue?</oldsource>
     </message>
     <message>
         <location filename="mainwindow.cpp" line="2261"/>
-        <location filename="mainwindow.cpp" line="5723"/>
-        <location filename="mainwindow.cpp" line="5763"/>
+        <location filename="mainwindow.cpp" line="5741"/>
+        <location filename="mainwindow.cpp" line="5781"/>
         <source>Bookmark Description</source>
         <translation>书签描述</translation>
     </message>
     <message>
         <location filename="mainwindow.cpp" line="2262"/>
-        <location filename="mainwindow.cpp" line="5724"/>
-        <location filename="mainwindow.cpp" line="5764"/>
+        <location filename="mainwindow.cpp" line="5742"/>
+        <location filename="mainwindow.cpp" line="5782"/>
         <source>Description:</source>
         <translation>描述：</translation>
     </message>
@@ -4742,195 +4742,205 @@ Are you really want to continue?</oldsource>
         <translation>删除文件夹</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2529"/>
+        <location filename="mainwindow.cpp" line="2524"/>
+        <source>Switch to normal view</source>
+        <translation>切换为普通视图</translation>
+    </message>
+    <message>
+        <location filename="mainwindow.cpp" line="2531"/>
+        <source>Switch to custom view</source>
+        <translation>切换为自定义视图</translation>
+    </message>
+    <message>
+        <location filename="mainwindow.cpp" line="2543"/>
         <source>Sort By Type</source>
         <translation>按类型排序</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2534"/>
+        <location filename="mainwindow.cpp" line="2548"/>
         <source>Sort alphabetically</source>
         <translation>按名称排序</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2539"/>
+        <location filename="mainwindow.cpp" line="2553"/>
         <source>Show inherited members</source>
         <translation>显示继承的成员</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2544"/>
+        <location filename="mainwindow.cpp" line="2558"/>
         <source>Goto declaration</source>
         <translation>跳转到声明处</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2547"/>
+        <location filename="mainwindow.cpp" line="2561"/>
         <source>Goto definition</source>
         <translation>跳转到定义处</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2639"/>
+        <location filename="mainwindow.cpp" line="2653"/>
         <source>Open in Editor</source>
         <translation>在编辑器中打开</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2651"/>
+        <location filename="mainwindow.cpp" line="2665"/>
         <source>Open in External Program</source>
         <translation>使用外部程序打开</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2661"/>
+        <location filename="mainwindow.cpp" line="2675"/>
         <source>Open in Terminal</source>
         <translation>在终端中打开</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2677"/>
+        <location filename="mainwindow.cpp" line="2691"/>
         <source>Open in Windows Explorer</source>
         <translation>在Windows浏览器中打开</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2724"/>
+        <location filename="mainwindow.cpp" line="2738"/>
         <source>Character sets</source>
         <translation>字符集</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2850"/>
+        <location filename="mainwindow.cpp" line="2864"/>
         <source>%1 files autosaved</source>
         <translation>已自动保存%1个文件</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3027"/>
+        <location filename="mainwindow.cpp" line="3046"/>
         <source>Set answer to...</source>
         <translation>设置答案源代码...</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3059"/>
+        <location filename="mainwindow.cpp" line="3078"/>
         <source>select other file...</source>
         <translation>选择其他文件...</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3065"/>
+        <location filename="mainwindow.cpp" line="3084"/>
         <source>Select Answer Source File</source>
         <translation>选择答案源代码文件</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3067"/>
+        <location filename="mainwindow.cpp" line="3086"/>
         <source>C/C++Source Files (*.c *.cpp *.cc *.cxx)</source>
         <oldsource>C/C++Source Files (*.c *.cpp *.cc *.cxx</oldsource>
         <translation>C/C++源代码文件 (*.c *.cpp *.cc *.cxx)</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3471"/>
+        <location filename="mainwindow.cpp" line="3492"/>
         <source>Save project</source>
         <translation>保存项目</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3472"/>
+        <location filename="mainwindow.cpp" line="3493"/>
         <source>The project &apos;%1&apos; has modifications.</source>
         <translation>项目&apos;%1&apos;有改动。</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3474"/>
-        <location filename="mainwindow.cpp" line="5828"/>
+        <location filename="mainwindow.cpp" line="3495"/>
+        <location filename="mainwindow.cpp" line="5846"/>
         <source>Do you want to save it?</source>
         <translation>需要保存吗？</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3561"/>
-        <location filename="mainwindow.cpp" line="3572"/>
+        <location filename="mainwindow.cpp" line="3582"/>
+        <location filename="mainwindow.cpp" line="3593"/>
         <source>File Changed</source>
         <translation>文件已发生变化</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3631"/>
+        <location filename="mainwindow.cpp" line="3652"/>
         <source>New Project File?</source>
         <translation>新建项目文件?</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3632"/>
+        <location filename="mainwindow.cpp" line="3653"/>
         <source>Do you want to add the new file to the project?</source>
         <translation>您是否要将新建的文件加入项目?</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3708"/>
-        <location filename="mainwindow.cpp" line="3718"/>
-        <location filename="mainwindow.cpp" line="3730"/>
-        <location filename="mainwindow.cpp" line="5877"/>
+        <location filename="mainwindow.cpp" line="3729"/>
+        <location filename="mainwindow.cpp" line="3739"/>
+        <location filename="mainwindow.cpp" line="3751"/>
+        <location filename="mainwindow.cpp" line="5899"/>
         <source>Save Error</source>
         <translation>保存失败</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3871"/>
+        <location filename="mainwindow.cpp" line="3892"/>
         <source>Change Project Compiler Set</source>
         <translation>改变项目编译器配置集</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3872"/>
+        <location filename="mainwindow.cpp" line="3893"/>
         <source>Change the project&apos;s compiler set will lose all custom compiler set options.</source>
         <translation>改变项目的编译器配置集会导致所有的自定义编译器选项被重置。</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3874"/>
+        <location filename="mainwindow.cpp" line="3895"/>
         <source>Do you really want to do that?</source>
         <translation>你真的想要做那些吗？</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="4807"/>
+        <location filename="mainwindow.cpp" line="4827"/>
         <source>Do you really want to clear all breakpoints in this file?</source>
         <translation>您真的要清除该文件的所有断点吗？</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="5005"/>
+        <location filename="mainwindow.cpp" line="5025"/>
         <source>New project</source>
         <translation>新建项目</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="5006"/>
+        <location filename="mainwindow.cpp" line="5026"/>
         <source>Close %1 and start new project?</source>
         <translation>关闭&apos;%1&apos;以打开新项目?</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="5019"/>
+        <location filename="mainwindow.cpp" line="5039"/>
         <source>Folder not exist</source>
         <translation>文件夹不存在</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="5020"/>
+        <location filename="mainwindow.cpp" line="5040"/>
         <source>Folder &apos;%1&apos; doesn&apos;t exist. Create it now?</source>
         <translation>文件夹&apos;%1&apos;不存在。是否创建？</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="5027"/>
+        <location filename="mainwindow.cpp" line="5047"/>
         <source>Can&apos;t create folder</source>
         <translation>无法创建文件夹</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="5028"/>
+        <location filename="mainwindow.cpp" line="5048"/>
         <source>Failed to create folder &apos;%1&apos;.</source>
         <translation>创建文件夹&apos;%1&apos;失败。</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="5043"/>
+        <location filename="mainwindow.cpp" line="5063"/>
         <source>Save new project as</source>
         <translation></translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="6170"/>
-        <location filename="mainwindow.cpp" line="6222"/>
+        <location filename="mainwindow.cpp" line="6192"/>
+        <location filename="mainwindow.cpp" line="6244"/>
         <source>Header Exists</source>
         <translation>头文件已存在</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="6171"/>
-        <location filename="mainwindow.cpp" line="6223"/>
+        <location filename="mainwindow.cpp" line="6193"/>
+        <location filename="mainwindow.cpp" line="6245"/>
         <source>Header file &quot;%1&quot; already exists!</source>
         <translation>头文件&quot;%1&quot;已存在！</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="6228"/>
+        <location filename="mainwindow.cpp" line="6250"/>
         <source>Source Exists</source>
         <translation>源文件已存在！</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="6229"/>
+        <location filename="mainwindow.cpp" line="6251"/>
         <source>Source file &quot;%1&quot; already exists!</source>
         <translation>源文件&quot;%1&quot;已存在！</translation>
     </message>
@@ -4939,125 +4949,125 @@ Are you really want to continue?</oldsource>
         <translation type="vanished">小熊猫Dev-C++项目文件 (*.dev)</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="5056"/>
+        <location filename="mainwindow.cpp" line="5076"/>
         <source>New project fail</source>
         <translation>新建项目失败</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="5057"/>
+        <location filename="mainwindow.cpp" line="5077"/>
         <source>Can&apos;t assign project template</source>
         <translation>无法使用模板创建项目</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="5144"/>
+        <location filename="mainwindow.cpp" line="5164"/>
         <source>Remove file</source>
         <translation>删除文件</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="5145"/>
+        <location filename="mainwindow.cpp" line="5165"/>
         <source>Remove the file from disk?</source>
         <translation>同时从硬盘上删除文件？</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="5334"/>
+        <location filename="mainwindow.cpp" line="5354"/>
         <source>untitled</source>
         <translation>无标题</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="5344"/>
+        <location filename="mainwindow.cpp" line="5364"/>
         <source>New Project File Name</source>
         <translation>新的项目文件名</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="5345"/>
+        <location filename="mainwindow.cpp" line="5365"/>
         <source>File Name:</source>
         <translation>文件名：</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="5351"/>
+        <location filename="mainwindow.cpp" line="5371"/>
         <source>File Already Exists!</source>
         <translation>文件已存在！</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="5352"/>
+        <location filename="mainwindow.cpp" line="5372"/>
         <source>File &apos;%1&apos; already exists!</source>
         <translation>文件&apos;%1&apos;已经存在！</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="5101"/>
+        <location filename="mainwindow.cpp" line="5121"/>
         <source>Add to project</source>
         <translation>添加到项目</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="5045"/>
+        <location filename="mainwindow.cpp" line="5065"/>
         <source>Red Panda C++ project file (*.dev)</source>
         <translation>小熊猫C++项目文件(*.dev)</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="5449"/>
+        <location filename="mainwindow.cpp" line="5469"/>
         <source>Rename Error</source>
         <translation>重命名出错</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="5450"/>
+        <location filename="mainwindow.cpp" line="5470"/>
         <source>Symbol &apos;%1&apos; is defined in system header.</source>
         <translation>符号&apos;%1&apos;在系统头文件中定义，无法修改。</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="5464"/>
+        <location filename="mainwindow.cpp" line="5484"/>
         <source>New Name</source>
         <translation>新名称</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="5588"/>
-        <location filename="mainwindow.cpp" line="5598"/>
+        <location filename="mainwindow.cpp" line="5606"/>
+        <location filename="mainwindow.cpp" line="5616"/>
         <source>Replace Error</source>
         <translation>替换出错</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="5589"/>
+        <location filename="mainwindow.cpp" line="5607"/>
         <source>Can&apos;t open file &apos;%1&apos; for replace!</source>
         <translation>无法打开文件&apos;%1&apos;进行替换！</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="5599"/>
+        <location filename="mainwindow.cpp" line="5617"/>
         <source>Contents has changed since last search!</source>
         <translation>内容和上次查找时不一致。</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="5645"/>
+        <location filename="mainwindow.cpp" line="5663"/>
         <source>Rich Text Format Files (*.rtf)</source>
         <translation>RTF格式文件 (*.rtf)</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="5667"/>
+        <location filename="mainwindow.cpp" line="5685"/>
         <source>HTML Files (*.html)</source>
         <translation>HTML文件 (*.html)</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="5826"/>
+        <location filename="mainwindow.cpp" line="5844"/>
         <source>The current problem set is not empty.</source>
         <translation>当前的试题集不是空的。</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="5844"/>
+        <location filename="mainwindow.cpp" line="5862"/>
         <source>Problem %1</source>
         <translation>试题%1</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="5870"/>
-        <location filename="mainwindow.cpp" line="5890"/>
+        <location filename="mainwindow.cpp" line="5888"/>
+        <location filename="mainwindow.cpp" line="5912"/>
         <source>Problem Set Files (*.pbs)</source>
         <translation>试题集文件 (*.pbs)</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="5896"/>
+        <location filename="mainwindow.cpp" line="5918"/>
         <source>Load Error</source>
         <translation>载入失败</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3207"/>
-        <location filename="mainwindow.cpp" line="5910"/>
+        <location filename="mainwindow.cpp" line="3228"/>
+        <location filename="mainwindow.cpp" line="5932"/>
         <source>Problem Case %1</source>
         <translation>试题案例%1</translation>
     </message>
@@ -5070,13 +5080,13 @@ Are you really want to continue?</oldsource>
         <location filename="mainwindow.cpp" line="248"/>
         <location filename="mainwindow.cpp" line="1025"/>
         <location filename="mainwindow.cpp" line="2142"/>
-        <location filename="mainwindow.cpp" line="2749"/>
-        <location filename="mainwindow.cpp" line="3568"/>
-        <location filename="mainwindow.cpp" line="3666"/>
-        <location filename="mainwindow.cpp" line="3840"/>
-        <location filename="mainwindow.cpp" line="3852"/>
-        <location filename="mainwindow.cpp" line="4254"/>
-        <location filename="mainwindow.cpp" line="4266"/>
+        <location filename="mainwindow.cpp" line="2763"/>
+        <location filename="mainwindow.cpp" line="3589"/>
+        <location filename="mainwindow.cpp" line="3687"/>
+        <location filename="mainwindow.cpp" line="3861"/>
+        <location filename="mainwindow.cpp" line="3873"/>
+        <location filename="mainwindow.cpp" line="4274"/>
+        <location filename="mainwindow.cpp" line="4286"/>
         <source>Error</source>
         <translation>错误</translation>
     </message>
@@ -5091,75 +5101,75 @@ Are you really want to continue?</oldsource>
         <translation>载入主题失败</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3562"/>
+        <location filename="mainwindow.cpp" line="3583"/>
         <source>File &apos;%1&apos; was changed.</source>
         <translation>磁盘文件&apos;%1&apos;已被修改。</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3562"/>
+        <location filename="mainwindow.cpp" line="3583"/>
         <source>Reload its content from disk?</source>
         <translation>是否重新读取它的内容？</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3573"/>
+        <location filename="mainwindow.cpp" line="3594"/>
         <source>File &apos;%1&apos; was removed.</source>
         <translation>磁盘文件&apos;%1&apos;已被删除。</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3573"/>
+        <location filename="mainwindow.cpp" line="3594"/>
         <source>Keep it open?</source>
         <translation>是否保持它在小熊猫C++中打开的编辑窗口？</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3659"/>
+        <location filename="mainwindow.cpp" line="3680"/>
         <source>Open</source>
         <translation>打开</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="4031"/>
+        <location filename="mainwindow.cpp" line="4052"/>
         <source>Compile Failed</source>
         <translation>编译失败</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="4037"/>
+        <location filename="mainwindow.cpp" line="4058"/>
         <source>Run Failed</source>
         <translation>运行失败</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="4283"/>
-        <location filename="mainwindow.cpp" line="4297"/>
+        <location filename="mainwindow.cpp" line="4303"/>
+        <location filename="mainwindow.cpp" line="4317"/>
         <source>Confirm Convertion</source>
         <translation>确认转换</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="4284"/>
-        <location filename="mainwindow.cpp" line="4298"/>
+        <location filename="mainwindow.cpp" line="4304"/>
+        <location filename="mainwindow.cpp" line="4318"/>
         <source>The editing file will be saved using %1 encoding. &lt;br /&gt;This operation can&apos;t be reverted. &lt;br /&gt;Are you sure to continue?</source>
         <translation>当前编辑器中的文件将会使用%1编码保存。&lt;br /&gt;这项操作无法被撤回。&lt;br /&gt;你确定要继续吗？</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="4448"/>
+        <location filename="mainwindow.cpp" line="4468"/>
         <source>New Watch Expression</source>
         <translation>新监视表达式</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="4449"/>
+        <location filename="mainwindow.cpp" line="4469"/>
         <source>Enter Watch Expression (it is recommended to use &apos;this-&gt;&apos; for class members):</source>
         <translation>输入监视表达式</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="4502"/>
+        <location filename="mainwindow.cpp" line="4522"/>
         <source>Parsing file %1 of %2: &quot;%3&quot;</source>
         <translation>（%1/%2）正在解析文件&quot;%3&quot;</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="4524"/>
-        <location filename="mainwindow.cpp" line="4530"/>
+        <location filename="mainwindow.cpp" line="4544"/>
+        <location filename="mainwindow.cpp" line="4550"/>
         <source>Done parsing %1 files in %2 seconds</source>
         <translation>完成%1个文件的解析,用时%2秒</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="4527"/>
+        <location filename="mainwindow.cpp" line="4547"/>
         <source>(%1 files per second)</source>
         <translation>(每秒%1个文件）</translation>
     </message>
@@ -5325,22 +5335,22 @@ Are you really want to continue?</oldsource>
 <context>
     <name>OJProblemCasesRunner</name>
     <message>
-        <location filename="compiler/ojproblemcasesrunner.cpp" line="125"/>
+        <location filename="compiler/ojproblemcasesrunner.cpp" line="126"/>
         <source>The runner process &apos;%1&apos; failed to start.</source>
         <translation>无法启动程序运行进程&apos;%1&apos;。</translation>
     </message>
     <message>
-        <location filename="compiler/ojproblemcasesrunner.cpp" line="132"/>
+        <location filename="compiler/ojproblemcasesrunner.cpp" line="133"/>
         <source>The last waitFor...() function timed out.</source>
         <translation>waitFor()函数等待超时。</translation>
     </message>
     <message>
-        <location filename="compiler/ojproblemcasesrunner.cpp" line="135"/>
+        <location filename="compiler/ojproblemcasesrunner.cpp" line="136"/>
         <source>An error occurred when attempting to write to the runner process.</source>
         <translation>在向程序运行进程写入内容时出错。</translation>
     </message>
     <message>
-        <location filename="compiler/ojproblemcasesrunner.cpp" line="138"/>
+        <location filename="compiler/ojproblemcasesrunner.cpp" line="139"/>
         <source>An error occurred when attempting to read from the runner process.</source>
         <translation>在从程序运行进程读取内容时出错。</translation>
     </message>
@@ -5391,83 +5401,98 @@ Are you really want to continue?</oldsource>
         <translation>找不到项目文件&apos;%1&apos;!</translation>
     </message>
     <message>
-        <location filename="project.cpp" line="252"/>
+        <location filename="project.cpp" line="254"/>
         <source>untitled</source>
         <translation>无标题</translation>
     </message>
     <message>
-        <location filename="project.cpp" line="521"/>
+        <location filename="project.cpp" line="548"/>
         <source>Can&apos;t save file</source>
         <translation>无法保存文件</translation>
     </message>
     <message>
-        <location filename="project.cpp" line="522"/>
+        <location filename="project.cpp" line="549"/>
         <source>Can&apos;t save file &apos;%1&apos;</source>
         <translation>无法保存文件&apos;%1&apos;.</translation>
     </message>
     <message>
-        <location filename="project.cpp" line="714"/>
+        <location filename="project.cpp" line="741"/>
         <source>Error Load File</source>
         <translation>载入文件错误</translation>
     </message>
     <message>
-        <location filename="project.cpp" line="824"/>
+        <location filename="project.cpp" line="853"/>
         <source>File Exists</source>
         <translation>文件已存在</translation>
     </message>
     <message>
-        <location filename="project.cpp" line="825"/>
+        <location filename="project.cpp" line="854"/>
         <source>File &apos;%1&apos; is already in the project</source>
         <translation>文件&apos;%1&apos;已在项目中</translation>
     </message>
     <message>
-        <location filename="project.cpp" line="1203"/>
+        <location filename="project.cpp" line="1232"/>
         <source>Project Updated</source>
         <translation>项目已升级</translation>
     </message>
     <message>
-        <location filename="project.cpp" line="1204"/>
+        <location filename="project.cpp" line="1233"/>
         <source>Your project was succesfully updated to a newer file format!</source>
         <translation>已成功将项目升级到新的格式</translation>
     </message>
     <message>
-        <location filename="project.cpp" line="1206"/>
+        <location filename="project.cpp" line="1235"/>
         <source>If something has gone wrong, we kept a backup-file: &apos;%1&apos;...</source>
         <translation>旧项目文件备份在&apos;%1&apos;。</translation>
     </message>
     <message>
-        <location filename="project.cpp" line="1369"/>
+        <location filename="project.cpp" line="1279"/>
+        <source>Headers</source>
+        <translation>头文件</translation>
+    </message>
+    <message>
+        <location filename="project.cpp" line="1285"/>
+        <source>Sources</source>
+        <translation>源文件</translation>
+    </message>
+    <message>
+        <location filename="project.cpp" line="1291"/>
+        <source>Others</source>
+        <translation>其他文件</translation>
+    </message>
+    <message>
+        <location filename="project.cpp" line="1451"/>
         <source>Settings need update</source>
         <translation>设置需要更新</translation>
     </message>
     <message>
-        <location filename="project.cpp" line="1370"/>
+        <location filename="project.cpp" line="1452"/>
         <source>The compiler settings format of Red Panda C++ has changed.</source>
         <oldsource>The compiler settings format of Dev-C++ has changed.</oldsource>
         <translation>小熊猫C++的编译器设置格式已发生改变。</translation>
     </message>
     <message>
-        <location filename="project.cpp" line="1372"/>
+        <location filename="project.cpp" line="1454"/>
         <source>Please update your settings at Project &gt;&gt; Project Options &gt;&gt; Compiler and save your project.</source>
         <translation>请在项目 &gt;&gt; 项目属性 &gt;&gt; 编译器设置中修改您的设置并保存您的项目</translation>
     </message>
     <message>
-        <location filename="project.cpp" line="1408"/>
+        <location filename="project.cpp" line="1491"/>
         <source>Compiler not found</source>
         <translation>未找到编译器</translation>
     </message>
     <message>
-        <location filename="project.cpp" line="1409"/>
+        <location filename="project.cpp" line="1492"/>
         <source>The compiler set you have selected for this project, no longer exists.</source>
         <translation>您为该项目设置的编译器不存在。</translation>
     </message>
     <message>
-        <location filename="project.cpp" line="1411"/>
+        <location filename="project.cpp" line="1494"/>
         <source>It will be substituted by the global compiler set.</source>
         <translation>它将会被全局编译器设置代替。</translation>
     </message>
     <message>
-        <location filename="project.cpp" line="1450"/>
+        <location filename="project.cpp" line="1533"/>
         <source>Developed using the Red Panda C++ IDE</source>
         <oldsource>Developed using the Red Panda Dev-C++ IDE</oldsource>
         <translation>使用小熊猫C++编辑器开发</translation>
@@ -5696,12 +5721,12 @@ Are you really want to continue?</oldsource>
         <translation>自定义构建命令</translation>
     </message>
     <message>
-        <location filename="settingsdialog/projectfileswidget.cpp" line="251"/>
+        <location filename="settingsdialog/projectfileswidget.cpp" line="250"/>
         <source>Auto detect</source>
         <translation>自动检测</translation>
     </message>
     <message>
-        <location filename="settingsdialog/projectfileswidget.cpp" line="252"/>
+        <location filename="settingsdialog/projectfileswidget.cpp" line="251"/>
         <source>ANSI</source>
         <translation>ANSI</translation>
     </message>
@@ -5710,7 +5735,7 @@ Are you really want to continue?</oldsource>
         <translation type="vanished">ANSI</translation>
     </message>
     <message>
-        <location filename="settingsdialog/projectfileswidget.cpp" line="253"/>
+        <location filename="settingsdialog/projectfileswidget.cpp" line="252"/>
         <source>UTF-8</source>
         <translation></translation>
     </message>
@@ -5874,24 +5899,24 @@ Are you really want to continue?</oldsource>
 <context>
     <name>ProjectModel</name>
     <message>
-        <location filename="project.cpp" line="1967"/>
+        <location filename="project.cpp" line="2050"/>
         <source>File exists</source>
         <translation>文件已存在</translation>
     </message>
     <message>
-        <location filename="project.cpp" line="1968"/>
+        <location filename="project.cpp" line="2051"/>
         <source>File &apos;%1&apos; already exists. Delete it now?</source>
         <translation>文件&apos;%1&apos;已存在。是否删除？</translation>
     </message>
     <message>
-        <location filename="project.cpp" line="1986"/>
-        <location filename="project.cpp" line="2006"/>
+        <location filename="project.cpp" line="2069"/>
+        <location filename="project.cpp" line="2089"/>
         <source>Remove failed</source>
         <translation>删除失败</translation>
     </message>
     <message>
-        <location filename="project.cpp" line="1987"/>
-        <location filename="project.cpp" line="2007"/>
+        <location filename="project.cpp" line="2070"/>
+        <location filename="project.cpp" line="2090"/>
         <source>Failed to remove file &apos;%1&apos;</source>
         <translation>无法删除文件&apos;%1&apos;</translation>
     </message>
@@ -7273,7 +7298,7 @@ Are you really want to continue?</oldsource>
         <translation>自动链接</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="5815"/>
+        <location filename="mainwindow.cpp" line="5833"/>
         <location filename="settingsdialog/settingsdialog.cpp" line="169"/>
         <location filename="settingsdialog/settingsdialog.cpp" line="202"/>
         <location filename="settingsdialog/settingsdialog.cpp" line="208"/>
@@ -7349,15 +7374,15 @@ Are you really want to continue?</oldsource>
         <translation>杂项</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="5816"/>
-        <location filename="mainwindow.cpp" line="6125"/>
+        <location filename="mainwindow.cpp" line="5834"/>
+        <location filename="mainwindow.cpp" line="6147"/>
         <location filename="settingsdialog/settingsdialog.cpp" line="202"/>
         <location filename="settingsdialog/settingsdialog.cpp" line="205"/>
         <source>Program Runner</source>
         <translation>程序运行</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="6124"/>
+        <location filename="mainwindow.cpp" line="6146"/>
         <location filename="settingsdialog/settingsdialog.cpp" line="205"/>
         <source>Problem Set</source>
         <translation>试题集</translation>
diff --git a/RedPandaIDE/iconsmanager.cpp b/RedPandaIDE/iconsmanager.cpp
index 3bb14ded..a54c93f3 100644
--- a/RedPandaIDE/iconsmanager.cpp
+++ b/RedPandaIDE/iconsmanager.cpp
@@ -314,7 +314,7 @@ QList<PIconSet> IconsManager::listIconSets()
     while(dirIter.hasNext()) {
         dirIter.next();
         QFileInfo fileInfo = dirIter.fileInfo();
-        if (!fileInfo.isHidden() && fileInfo.isDir()) {
+        if (!fileInfo.isHidden() && !fileInfo.fileName().startsWith('.') && fileInfo.isDir()) {
             PIconSet pSet = std::make_shared<IconSet>();
             pSet->name = fileInfo.baseName();
             pSet->displayName = pSet->name;
diff --git a/RedPandaIDE/mainwindow.cpp b/RedPandaIDE/mainwindow.cpp
index 6634df46..7ccea5f7 100644
--- a/RedPandaIDE/mainwindow.cpp
+++ b/RedPandaIDE/mainwindow.cpp
@@ -2520,6 +2520,20 @@ void MainWindow::buildContextMenus()
         mProject->removeFolder(folderNode);
         mProject->saveOptions();
     });
+    mProject_SwitchFileSystemViewMode = createActionFor(
+                tr("Switch to normal view"),
+                ui->projectView);
+    connect(mProject_SwitchFileSystemViewMode, &QAction::triggered,
+            [this](){
+        mProject->setModelType(ProjectModelType::FileSystem);
+    });
+    mProject_SwitchCustomViewMode = createActionFor(
+                tr("Switch to custom view"),
+                ui->projectView);
+    connect(mProject_SwitchCustomViewMode, &QAction::triggered,
+            [this](){
+        mProject->setModelType(ProjectModelType::Custom);
+    });
 
     //context menu signal for class browser
     ui->tabStructure->setContextMenuPolicy(Qt::CustomContextMenu);
@@ -2928,7 +2942,7 @@ void MainWindow::onProjectViewContextMenu(const QPoint &pos)
         menu.addAction(mProject_Rename_Unit);
     }
     menu.addSeparator();
-    if (onFolder) {
+    if (onFolder && mProject->modelType()==ProjectModelType::Custom) {
         menu.addAction(mProject_Add_Folder);
         if (!onRoot) {
             menu.addAction(mProject_Rename_Folder);
@@ -2941,6 +2955,11 @@ void MainWindow::onProjectViewContextMenu(const QPoint &pos)
     menu.addAction(ui->actionProject_Open_Folder_In_Explorer);
     menu.addAction(ui->actionProject_Open_In_Terminal);
     menu.addSeparator();
+    if (mProject->modelType() == ProjectModelType::Custom) {
+        menu.addAction(mProject_SwitchFileSystemViewMode);
+    } else {
+        menu.addAction(mProject_SwitchCustomViewMode);
+    }
     menu.addAction(ui->actionProject_options);
 
     menu.exec(ui->projectView->mapToGlobal(pos));
diff --git a/RedPandaIDE/mainwindow.h b/RedPandaIDE/mainwindow.h
index 757ef611..28e6f6de 100644
--- a/RedPandaIDE/mainwindow.h
+++ b/RedPandaIDE/mainwindow.h
@@ -650,6 +650,8 @@ private:
     QAction * mProject_Rename_Unit;
     QAction * mProject_Rename_Folder;
     QAction * mProject_Remove_Folder;
+    QAction * mProject_SwitchFileSystemViewMode;
+    QAction * mProject_SwitchCustomViewMode;
 
     //actions for class browser
     QAction * mClassBrowser_Sort_By_Type;
diff --git a/RedPandaIDE/project.cpp b/RedPandaIDE/project.cpp
index 49da4259..914b3806 100644
--- a/RedPandaIDE/project.cpp
+++ b/RedPandaIDE/project.cpp
@@ -56,7 +56,7 @@ Project::Project(const QString &filename, const QString &name, QObject *parent)
         ini.SetValue("Project","filename", toByteArray(extractRelativePath(directory(),mFilename)));
         ini.SetValue("Project","name", toByteArray(mName));
         ini.SaveFile(mFilename.toLocal8Bit());
-        mNode = makeProjectNode();
+        mRootNode = makeProjectNode();
     }
     resetCppParser(mParser,mOptions.compilerSet);
 }
@@ -141,7 +141,7 @@ void Project::open()
     ini.LoadFile(mFilename.toLocal8Bit());
     loadOptions(ini);
 
-    mNode = makeProjectNode();
+    mRootNode = makeProjectNode();
 
     checkProjectFileForUpdate(ini);
     int uCount  = ini.GetLongValue("Project","UnitCount",0);
@@ -211,7 +211,7 @@ PProjectModelNode Project::makeNewFileNode(const QString &s, bool isFolder, PPro
 {
     PProjectModelNode node = std::make_shared<ProjectModelNode>();
     if (!newParent) {
-        newParent = mNode;
+        newParent = mRootNode;
     }
     newParent->children.append(node);
     node->parent = newParent;
@@ -219,8 +219,10 @@ PProjectModelNode Project::makeNewFileNode(const QString &s, bool isFolder, PPro
     if (newParent) {
         node->level = newParent->level+1;
     }
-    if (isFolder)
+    if (isFolder) {
         node->unitIndex = -1;
+        node->priority = 0;
+    }
     return node;
 }
 
@@ -239,10 +241,10 @@ PProjectUnit Project::newUnit(PProjectModelNode parentNode, const QString& custo
 
     // Select folder to add unit to
     if (!parentNode)
-        parentNode = mNode; // project root node
+        parentNode = mRootNode; // project root node
 
     if (parentNode->unitIndex>=0) { //it's a file
-        parentNode = mNode;
+        parentNode = mRootNode;
     }
     QString s;
     QDir dir(directory());
@@ -309,10 +311,13 @@ Editor *Project::openUnit(int index)
 
 void Project::rebuildNodes()
 {
-
+    qDebug()<<(int)mOptions.modelType;
     mModel.beginUpdate();
     // Delete everything
-    mNode->children.clear();
+    mRootNode->children.clear();
+    mFolderNodes.clear();
+    mSpecialNodes.clear();
+    mFileSystemFolderNodes.clear();
 
     // Recreate everything
     switch(mOptions.modelType) {
@@ -320,20 +325,36 @@ void Project::rebuildNodes()
         createFolderNodes();
 
         for (int idx=0;idx<mUnits.count();idx++) {
+            QFileInfo fileInfo(mUnits[idx]->fileName());
             mUnits[idx]->setNode(
                         makeNewFileNode(
-                            extractRelativePath(filename(),mUnits[idx]->fileName()),
+                            fileInfo.fileName(),
                             false,
                             folderNodeFromName(mUnits[idx]->folder())
                             )
                         );
             mUnits[idx]->node()->unitIndex = idx;
+            mUnits[idx]->node()->priority = mUnits[idx]->priority();
         }
         break;
     case ProjectModelType::FileSystem:
         createFileSystemFolderNodes();
-    }
 
+        for (int idx=0;idx<mUnits.count();idx++) {
+            QFileInfo fileInfo(mUnits[idx]->fileName());
+            mUnits[idx]->setNode(
+                        makeNewFileNode(
+                            fileInfo.fileName(),
+                            false,
+                            getParentFolderNode(
+                                mUnits[idx]->fileName())
+                            )
+                        );
+            mUnits[idx]->node()->unitIndex = idx;
+            mUnits[idx]->node()->priority = mUnits[idx]->priority();
+        }
+        break;
+    }
 
     mModel.endUpdate();
     emit nodesChanged();
@@ -617,7 +638,7 @@ void Project::setCompilerOption(const QString &optionString, char value)
 void Project::updateFolders()
 {
     mFolders.clear();
-    updateFolderNode(mNode);
+    updateFolderNode(mRootNode);
     for (int idx = 0; idx < mUnits.count();idx++)
         mUnits[idx]->setFolder(
                     getFolderPath(
@@ -636,10 +657,10 @@ void Project::updateNodeIndexes()
 PProjectModelNode Project::pointerToNode(ProjectModelNode *p, PProjectModelNode parent)
 {
     if (!parent) {
-        parent = mNode;
+        parent = mRootNode;
     }
-    if (p==mNode.get())
-        return mNode;
+    if (p==mRootNode.get())
+        return mRootNode;
     foreach (const PProjectModelNode& node , parent->children) {
         if (node.get()==p)
             return node;
@@ -693,16 +714,16 @@ bool Project::assignTemplate(const std::shared_ptr<ProjectTemplate> aTemplate, b
                 QFile::copy(
                             QDir(pSettings->dirs().templateDir()).absoluteFilePath(templateUnit->Source),
                             includeTrailingPathDelimiter(this->directory())+target);
-                unit = newUnit(mNode, target);
+                unit = newUnit(mRootNode, target);
             } else {
                 QString s;
                 PProjectUnit unit;
                 if (mOptions.isCpp) {
                     s = templateUnit->CppText;
-                    unit = newUnit(mNode, templateUnit->CppName);
+                    unit = newUnit(mRootNode, templateUnit->CppName);
                 } else {
                     s = templateUnit->CText;
-                    unit = newUnit(mNode,templateUnit->CName);
+                    unit = newUnit(mRootNode,templateUnit->CName);
                 }
 
                 Editor * editor = pMainWindow->editorList()->newEditor(
@@ -730,6 +751,7 @@ bool Project::assignTemplate(const std::shared_ptr<ProjectTemplate> aTemplate, b
             }
         }
     }
+    rebuildNodes();
     return true;
 }
 
@@ -1228,9 +1250,8 @@ void Project::closeUnit(int index)
 
 void Project::createFolderNodes()
 {
-    mFolderNodes.clear();
     for (int idx=0;idx<mFolders.count();idx++) {
-        PProjectModelNode node = mNode;
+        PProjectModelNode node = mRootNode;
         QString s = mFolders[idx];
         int i = s.indexOf('/');
         while (i>=0) {
@@ -1255,17 +1276,39 @@ void Project::createFolderNodes()
 
 void Project::createFileSystemFolderNodes()
 {
-    mFolderNodes.clear();
-    PProjectModelNode node = makeNewFileNode(tr("Headers"),true,mNode);
-    createFileSystemFolderNode(folder(),node);
-    mFolderNodes.append(node);
-    node = makeNewFileNode(tr("Sources"),true,mNode);
-    createFileSystemFolderNode(folder(),node);
-    mFolderNodes.append(node);
-    node = makeNewFileNode(tr("Sources"),true,mNode);
-    createFileSystemFolderNode(folder(),node);
+    PProjectModelNode node = makeNewFileNode(tr("Headers"),true,mRootNode);
+    createFileSystemFolderNode(ProjectSpecialFolderNode::HEADERS,folder(),node);
+    node->priority = 1000;
     mFolderNodes.append(node);
+    mSpecialNodes.insert(ProjectSpecialFolderNode::HEADERS,node);
 
+    node = makeNewFileNode(tr("Sources"),true,mRootNode);
+    createFileSystemFolderNode(ProjectSpecialFolderNode::SOURCES,folder(),node);
+    node->priority = 900;
+    mFolderNodes.append(node);
+    mSpecialNodes.insert(ProjectSpecialFolderNode::SOURCES,node);
+
+    node = makeNewFileNode(tr("Others"),true,mRootNode);
+    createFileSystemFolderNode(ProjectSpecialFolderNode::OTHERS,folder(),node);
+    node->priority = 800;
+    mFolderNodes.append(node);
+    mSpecialNodes.insert(ProjectSpecialFolderNode::OTHERS,node);
+}
+
+void Project::createFileSystemFolderNode(ProjectSpecialFolderNode folderType, const QString &folderName, PProjectModelNode parent)
+{
+    QDirIterator iter(folderName);
+    while (iter.hasNext()) {
+        iter.next();
+        QFileInfo fileInfo = iter.fileInfo();
+        if (fileInfo.isHidden() || fileInfo.fileName().startsWith('.'))
+            continue;
+        if (fileInfo.isDir()) {
+            PProjectModelNode node = makeNewFileNode(fileInfo.fileName(),true,parent);
+            mFileSystemFolderNodes.insert(QString("%1/%2").arg((int)folderType).arg(fileInfo.absolutePath()),node);
+            createFileSystemFolderNode(folderType,fileInfo.path(), node);
+        }
+    }
 }
 
 void Project::doAutoOpen()
@@ -1282,13 +1325,25 @@ bool Project::fileAlreadyExists(const QString &s)
     return false;
 }
 
+PProjectModelNode Project::findFolderNode(const QString &folderPath, ProjectSpecialFolderNode nodeType)
+{
+    PProjectModelNode node = mFileSystemFolderNodes.value(QString("%1/%2").arg((int)nodeType).arg(folderPath),
+                                                          PProjectModelNode());
+    if (node)
+        return node;
+    PProjectModelNode parentNode = mSpecialNodes.value(nodeType,PProjectModelNode());
+    if (parentNode)
+        return parentNode;
+    return mRootNode;
+}
+
 PProjectModelNode Project::folderNodeFromName(const QString &name)
 {
     int index = mFolders.indexOf(name);
     if (index>=0) {
         return mFolderNodes[index];
     }
-    return mNode;
+    return mRootNode;
 }
 
 char Project::getCompilerOption(const QString &optionString)
@@ -1314,7 +1369,7 @@ QString Project::getFolderPath(PProjectModelNode node)
         return result;
 
     PProjectModelNode p = node;
-    while (p && p->unitIndex==-1 && p!=mNode) {
+    while (p && p->unitIndex==-1 && p!=mRootNode) {
         if (!result.isEmpty())
             result = p->text + "/" + result;
         else
@@ -1329,6 +1384,20 @@ int Project::getUnitFromString(const QString &s)
     return indexInUnits(s);
 }
 
+PProjectModelNode Project::getParentFolderNode(const QString &filename)
+{
+    QFileInfo fileInfo(filename);
+    ProjectSpecialFolderNode folderNodeType;
+    if (isHfile(fileInfo.fileName())) {
+        folderNodeType = ProjectSpecialFolderNode::HEADERS;
+    } else if (isCfile(fileInfo.fileName())) {
+        folderNodeType = ProjectSpecialFolderNode::SOURCES;
+    } else {
+        folderNodeType = ProjectSpecialFolderNode::OTHERS;
+    }
+    return findFolderNode(fileInfo.absolutePath(),folderNodeType);
+}
+
 void Project::incrementBuildNumber()
 {
     mOptions.versionInfo.build++;
@@ -1342,15 +1411,6 @@ void Project::incrementBuildNumber()
     setModified(true);
 }
 
-QString Project::listUnitStr(const QChar &separator)
-{
-    QStringList units;
-    foreach (const PProjectUnit& unit, mUnits) {
-        units.append('"'+unit->fileName()+'"');
-    }
-    return units.join(separator);
-}
-
 void Project::loadLayout()
 {
     SimpleIni layIni;
@@ -1525,30 +1585,6 @@ PCppParser Project::cppParser()
     return mParser;
 }
 
-void Project::sortUnitsByPriority()
-{
-    mModel.beginUpdate();
-    auto action = finally([this]{
-        mModel.endUpdate();
-    });
-    std::sort(mUnits.begin(),mUnits.end(),[](const PProjectUnit& u1, const PProjectUnit& u2)->bool{
-        return (u1->priority()>u2->priority());
-    });
-    rebuildNodes();
-}
-
-void Project::sortUnitsByAlpha()
-{
-    mModel.beginUpdate();
-    auto action = finally([this]{
-        mModel.endUpdate();
-    });
-    std::sort(mUnits.begin(),mUnits.end(),[](const PProjectUnit& u1, const PProjectUnit& u2)->bool{
-        return (extractFileName(u1->fileName())<extractFileName(u2->fileName()));
-    });
-    rebuildNodes();
-}
-
 int Project::indexInUnits(const QString &fileName) const
 {
     QDir dir(directory());
@@ -1621,6 +1657,19 @@ const QList<PProjectUnit> &Project::units() const
     return mUnits;
 }
 
+ProjectModelType Project::modelType() const
+{
+    return mOptions.modelType;
+}
+
+void Project::setModelType(ProjectModelType type)
+{
+    if (type!=mOptions.modelType) {
+        mOptions.modelType = type;
+        rebuildNodes();
+    }
+}
+
 ProjectOptions &Project::options()
 {
     return mOptions;
@@ -1633,7 +1682,7 @@ ProjectModel *Project::model()
 
 const PProjectModelNode &Project::rootNode() const
 {
-    return mNode;
+    return mRootNode;
 }
 
 const QString &Project::name() const
@@ -1645,7 +1694,7 @@ void Project::setName(const QString &newName)
 {
     if (newName != mName) {
         mName = newName;
-        mNode->text = newName;
+        mRootNode->text = newName;
         setModified(true);
     }
 }
@@ -1775,7 +1824,11 @@ int ProjectUnit::priority() const
 
 void ProjectUnit::setPriority(int newPriority)
 {
-    mPriority = newPriority;
+    if (mPriority!=newPriority) {
+        mPriority = newPriority;
+        if (mNode)
+            mNode->priority = mPriority;
+    }
 }
 
 const QByteArray &ProjectUnit::encoding() const
@@ -1946,12 +1999,19 @@ Qt::ItemFlags ProjectModel::flags(const QModelIndex &index) const
         return Qt::NoItemFlags;
     if (p==mProject->rootNode().get())
         return Qt::ItemIsEnabled | Qt::ItemIsDropEnabled | Qt::ItemIsEditable;
-    Qt::ItemFlags flags = Qt::ItemIsEnabled | Qt::ItemIsEditable | Qt::ItemIsSelectable | Qt::ItemIsDragEnabled;
-    if (p->unitIndex<0) {
-        flags.setFlag(Qt::ItemIsDropEnabled);
-        flags.setFlag(Qt::ItemIsDragEnabled,false);
+    if (mProject && mProject->modelType() == ProjectModelType::FileSystem) {
+        Qt::ItemFlags flags = Qt::ItemIsEnabled | Qt::ItemIsSelectable;
+        if (p->unitIndex>=0)
+            flags.setFlag(Qt::ItemIsEditable);
+        return flags;
+    } else {
+        Qt::ItemFlags flags = Qt::ItemIsEnabled | Qt::ItemIsEditable | Qt::ItemIsSelectable | Qt::ItemIsDragEnabled;
+        if (p->unitIndex<0) {
+            flags.setFlag(Qt::ItemIsDropEnabled);
+            flags.setFlag(Qt::ItemIsDragEnabled,false);
+        }
+        return flags;
     }
-    return flags;
 }
 
 bool ProjectModel::setData(const QModelIndex &index, const QVariant &value, int role)
@@ -2036,7 +2096,12 @@ bool ProjectModel::setData(const QModelIndex &index, const QVariant &value, int
 
             // Add new filename to file minitor
             pMainWindow->fileSystemWatcher()->addPath(newName);
-            emit dataChanged(index,index);
+            //suffix changed
+            if (mProject && mProject->modelType() == ProjectModelType::FileSystem
+                    && QFileInfo(oldName).suffix()!=QFileInfo(newName).suffix()) {
+                mProject->rebuildNodes();
+            } else
+                emit dataChanged(index,index);
             return true;
         } else {
             //change folder name
@@ -2225,5 +2290,7 @@ bool ProjectModelSortFilterProxy::lessThan(const QModelIndex &source_left, const
         return true;
     if (pLeft->unitIndex>=0 && pRight->unitIndex<0)
         return false;
+    if (pLeft->priority!=pRight->priority)
+        return pLeft->priority>pRight->priority;
     return QString::compare(pLeft->text, pRight->text)<0;
 }
diff --git a/RedPandaIDE/project.h b/RedPandaIDE/project.h
index b40fed8d..1739dbce 100644
--- a/RedPandaIDE/project.h
+++ b/RedPandaIDE/project.h
@@ -33,6 +33,7 @@ struct ProjectModelNode {
     QString text;
     std::weak_ptr<ProjectModelNode> parent;
     int unitIndex;
+    int priority;
     QList<PProjectModelNode>  children;
     int level;
 };
@@ -132,6 +133,13 @@ protected:
     bool lessThan(const QModelIndex &source_left, const QModelIndex &source_right) const override;
 };
 
+enum ProjectSpecialFolderNode {
+    HEADERS,
+    SOURCES,
+    OTHERS,
+    NonSpecial
+};
+
 class ProjectTemplate;
 class Project : public QObject
 {
@@ -152,27 +160,19 @@ public:
                 bool rebuild);
     QString folder();
     void buildPrivateResource(bool forceSave=false);
-    void checkProjectFileForUpdate(SimpleIni& ini);
     void closeUnit(int index);
-    void createFolderNodes();
     void doAutoOpen();
     bool fileAlreadyExists(const QString& s);
-    PProjectModelNode folderNodeFromName(const QString& name);
     char getCompilerOption(const QString& optionString);
     QString getFolderPath(PProjectModelNode node);
     int getUnitFromString(const QString& s);
     void incrementBuildNumber();
     int indexInUnits(const QString& fileName) const;
     int indexInUnits(const Editor* editor) const;
-    QString listUnitStr(const QChar& separator);
-    void loadLayout(); // load all [UnitX]
-    void loadOptions(SimpleIni& ini);
-    void loadUnitLayout(Editor *e, int index); // load single [UnitX] cursor positions
-    PProjectModelNode makeNewFileNode(const QString& s, bool isFolder, PProjectModelNode newParent);
-    PProjectModelNode makeProjectNode();
     PProjectUnit  newUnit(PProjectModelNode parentNode,
                  const QString& customFileName="");
     Editor* openUnit(int index);
+    PProjectModelNode pointerToNode(ProjectModelNode * p, PProjectModelNode parent=PProjectModelNode());
     void rebuildNodes();
     bool removeUnit(int index, bool doClose, bool removeFile = false);
     bool removeFolder(PProjectModelNode node);
@@ -181,17 +181,13 @@ public:
     void saveLayout(); // save all [UnitX]
     void saveOptions();
     void saveUnitAs(int i, const QString& sFileName, bool syncEditor = true); // save single [UnitX]
-    void saveUnitLayout(Editor* e, int index); // save single [UnitX] cursor positions
     bool saveUnits();
     PProjectUnit findUnitByFilename(const QString& filename);
     void associateEditor(Editor* editor);
     void associateEditorToUnit(Editor* editor, PProjectUnit unit);
     void setCompilerOption(const QString& optionString, char value);
-    void sortUnitsByPriority();
-    void sortUnitsByAlpha();
     void updateFolders();
     void updateNodeIndexes();
-    PProjectModelNode pointerToNode(ProjectModelNode * p, PProjectModelNode parent=PProjectModelNode());
     void setCompilerSet(int compilerSetIndex);
 
     //void showOptions();
@@ -212,12 +208,29 @@ public:
 
     const QList<PProjectUnit> &units() const;
 
+    ProjectModelType modelType() const;
+    void setModelType(ProjectModelType type);
+
 signals:
     void nodesChanged();
     void modifyChanged(bool value);
 private:
+    void checkProjectFileForUpdate(SimpleIni& ini);
+    void createFolderNodes();
+    void createFileSystemFolderNodes();
+    void createFileSystemFolderNode(ProjectSpecialFolderNode folderType, const QString& folderName, PProjectModelNode parent);
+    PProjectModelNode getParentFolderNode(const QString& filename);
+    PProjectModelNode findFolderNode(const QString& folderPath, ProjectSpecialFolderNode nodeType);
+    PProjectModelNode folderNodeFromName(const QString& name);
+    void loadOptions(SimpleIni& ini);
+    void loadLayout(); // load all [UnitX]
+    void loadUnitLayout(Editor *e, int index); // load single [UnitX] cursor positions
+
+    PProjectModelNode makeNewFileNode(const QString& s, bool isFolder, PProjectModelNode newParent);
+    PProjectModelNode makeProjectNode();
     void open();
     void removeFolderRecurse(PProjectModelNode node);
+    void saveUnitLayout(Editor* e, int index); // save single [UnitX] cursor positions
     void updateFolderNode(PProjectModelNode node);
     void updateCompilerSetType();
 
@@ -230,7 +243,9 @@ private:
     QStringList mFolders;
     std::shared_ptr<CppParser> mParser;
     QList<PProjectModelNode> mFolderNodes;
-    PProjectModelNode mNode;
+    PProjectModelNode mRootNode;
+    QHash<ProjectSpecialFolderNode, PProjectModelNode> mSpecialNodes;
+    QHash<QString, PProjectModelNode> mFileSystemFolderNodes;
     ProjectModel mModel;
 };
 
diff --git a/RedPandaIDE/projecttemplate.cpp b/RedPandaIDE/projecttemplate.cpp
index f17f763d..b8cf3db0 100644
--- a/RedPandaIDE/projecttemplate.cpp
+++ b/RedPandaIDE/projecttemplate.cpp
@@ -148,6 +148,7 @@ void ProjectTemplate::readTemplateFile(const QString &fileName)
     } else {
         mOptions.encoding = fromByteArray(mIni->GetValue("Project","Encoding", ENCODING_AUTO_DETECT));
     }
+    mOptions.modelType = (ProjectModelType)mIni->GetLongValue("Project", "ModelType", (int)ProjectModelType::FileSystem);
 
 }
 
diff --git a/RedPandaIDE/settingsdialog/projectfileswidget.cpp b/RedPandaIDE/settingsdialog/projectfileswidget.cpp
index 380b9d88..d160bbc4 100644
--- a/RedPandaIDE/settingsdialog/projectfileswidget.cpp
+++ b/RedPandaIDE/settingsdialog/projectfileswidget.cpp
@@ -56,7 +56,6 @@ void ProjectFilesWidget::doSave()
         unit->setBuildCmd(unitCopy->buildCmd());
         unit->setEncoding(unitCopy->encoding());
     }
-    pMainWindow->project()->sortUnitsByPriority();
     pMainWindow->project()->saveUnits();
     copyUnits();
     ui->treeProject->expandAll();
diff --git a/RedPandaIDE/utils.cpp b/RedPandaIDE/utils.cpp
index c2683509..5e6ef97c 100644
--- a/RedPandaIDE/utils.cpp
+++ b/RedPandaIDE/utils.cpp
@@ -1116,7 +1116,7 @@ void copyFolder(const QString &fromDir, const QString &toDir)
     while (it.hasNext()){
         it.next();
         const auto fileInfo = it.fileInfo();
-        if(!fileInfo.isHidden()) { //filters dot and dotdot
+        if(!fileInfo.isHidden() && !fileInfo.fileName().startsWith('.')) { //filters dot and dotdot
             const QString subPathStructure = fileInfo.absoluteFilePath().mid(absSourcePathLength);
             const QString constructedAbsolutePath = targetDir.absolutePath() + subPathStructure;
             if(fileInfo.isDir()){
diff --git a/Red_Panda_CPP.pro b/Red_Panda_CPP.pro
index 5e213ca5..2dd6616e 100644
--- a/Red_Panda_CPP.pro
+++ b/Red_Panda_CPP.pro
@@ -7,7 +7,7 @@ SUBDIRS += \
 
 APP_NAME = RedPandaCPP
 
-APP_VERSION = 0.14.1
+APP_VERSION = 0.14.2
 
 linux: {