Index: src/include/editormanager.h
===================================================================
--- src/include/editormanager.h    (revision 6187)
+++ src/include/editormanager.h    (working copy)
@@ -44,6 +44,20 @@
 // forward decl
 struct cbFindReplaceData;
 
+ /*
+ * Struct for store tabs stack info
+ */
+struct cbNotebookStack
+{
+    cbNotebookStack(wxWindow* a_pWindow = NULL)
+        : window (a_pWindow),
+          next (NULL)
+   {}
+
+    wxWindow*           window;
+    cbNotebookStack*    next;
+};
+
 /*
  * No description
  */
@@ -59,6 +73,10 @@
         virtual void operator=(const EditorManager& rhs){ cbThrow(_T("Can't assign an EditorManager* !!!")); }
 
         cbAuiNotebook* GetNotebook() { return m_pNotebook; }
+        cbNotebookStack* GetNotebookStack();
+        void DeleteNotebookStack();
+        void RebuildNotebookStack();
+
         void CreateMenu(wxMenuBar* menuBar);
         void ReleaseMenu(wxMenuBar* menuBar);
         void Configure();
@@ -174,6 +192,9 @@
         wxFileName FindHeaderSource(const wxArrayString& candidateFilesArray, const wxFileName& activeFile, bool& isCandidate);
 
         cbAuiNotebook*             m_pNotebook;
+        cbNotebookStack*           m_pNotebookStackHead;
+        cbNotebookStack*           m_pNotebookStackTail;
+        size_t                     m_nNotebookStackSize;
         cbFindReplaceData*         m_LastFindReplaceData;
         EditorColourSet*           m_Theme;
         ListCtrlLogger*            m_pSearchLog;
Index: src/sdk/editormanager.cpp
===================================================================
--- src/sdk/editormanager.cpp    (revision 6187)
+++ src/sdk/editormanager.cpp    (working copy)
@@ -156,6 +156,9 @@
 
 EditorManager::EditorManager()
         : m_pNotebook(0L),
+        m_pNotebookStackHead(new cbNotebookStack),
+        m_pNotebookStackTail(m_pNotebookStackHead),
+        m_nNotebookStackSize(0),
         m_LastFindReplaceData(0L),
         m_pSearchLog(0),
         m_SearchLogIndex(-1),
@@ -187,12 +190,88 @@
     CodeBlocksLogEvent evt(cbEVT_REMOVE_LOG_WINDOW, m_pSearchLog);
     Manager::Get()->ProcessEvent(evt);
 
+    DeleteNotebookStack();
+    delete m_pNotebookStackHead;
     delete m_Theme;
     delete m_LastFindReplaceData;
     delete m_pData;
     Manager::Get()->GetConfigManager(_T("editor"))->Write(_T("/zoom"), m_Zoom);
 }
 
+cbNotebookStack* EditorManager::GetNotebookStack()
+{
+    bool founded = false;
+    wxWindow* wnd;
+    cbNotebookStack* body;
+    cbNotebookStack* prev_body;
+
+    while(m_nNotebookStackSize != m_pNotebook->GetPageCount()) //Sync stack with Notebook
+    {
+        if(m_nNotebookStackSize < m_pNotebook->GetPageCount())
+        {
+            for(size_t i = 0; i<m_pNotebook->GetPageCount(); ++i)
+            {
+                wnd = m_pNotebook->GetPage(i);
+                founded = false;
+                for (body = m_pNotebookStackHead->next; body != NULL; body = body->next)
+                {
+                    if(wnd == body->window)
+                    {
+                        founded = true;
+                        break;
+                    }
+                }
+                if(!founded)
+                {
+                    m_pNotebookStackTail->next = new cbNotebookStack(wnd);
+                    m_pNotebookStackTail = m_pNotebookStackTail->next;
+                    ++m_nNotebookStackSize;
+                }
+            }
+        }
+        if(m_nNotebookStackSize > m_pNotebook->GetPageCount())
+        {
+            for (prev_body = m_pNotebookStackHead, body = prev_body->next; body != NULL; prev_body = body, body = body->next)
+            {
+                if(m_pNotebook->GetPageIndex(body->window) == wxNOT_FOUND)
+                {
+                    prev_body->next = body->next;
+                    delete body;
+                    --m_nNotebookStackSize;
+                    body = prev_body;
+                }
+            }
+        }
+    }
+
+    return m_pNotebookStackHead->next;
+}
+
+void EditorManager::DeleteNotebookStack()
+{
+    cbNotebookStack* tmp;
+    while(m_pNotebookStackHead->next)
+    {
+        tmp = m_pNotebookStackHead->next;
+        m_pNotebookStackHead->next = tmp->next;
+        delete tmp;
+    }
+    m_pNotebookStackTail = m_pNotebookStackHead;
+    m_nNotebookStackSize = 0;
+}
+
+void EditorManager::RebuildNotebookStack()
+{
+    DeleteNotebookStack();
+    for(size_t i = 0; i < m_pNotebook->GetPageCount(); ++i)
+    {
+        m_pNotebookStackTail->next = new cbNotebookStack(m_pNotebook->GetPage(i));
+        m_pNotebookStackTail = m_pNotebookStackTail->next;
+        ++m_nNotebookStackSize;
+    }
+}
+
+
 void EditorManager::CreateMenu(wxMenuBar* menuBar)
 {
 }
@@ -2504,6 +2583,36 @@
     CodeBlocksEvent evt(cbEVT_EDITOR_ACTIVATED, -1, 0, eb);
     Manager::Get()->GetPluginManager()->NotifyPlugins(evt);
 
+    if (Manager::Get()->GetConfigManager(_T("app"))->ReadBool(_T("/environment/stacked
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