diff --git a/PowerEditor/src/Notepad_plus.cpp b/PowerEditor/src/Notepad_plus.cpp
index b9a1ee6b..b60bdd73 100644
--- a/PowerEditor/src/Notepad_plus.cpp
+++ b/PowerEditor/src/Notepad_plus.cpp
@@ -109,7 +109,7 @@ ToolBarButtonUnit toolBarIcons[] = {
 Notepad_plus::Notepad_plus(): _mainWindowStatus(0), _pDocTab(NULL), _pEditView(NULL),
 	_pMainSplitter(NULL),
     _recordingMacro(false), _pTrayIco(NULL), _isUDDocked(false), _pFileSwitcherPanel(NULL),
-	_pProjectPanel_1(NULL), _pProjectPanel_2(NULL), _pProjectPanel_3(NULL),
+	_pProjectPanel(NULL), _pProjectPanel_2(NULL), _pProjectPanel_3(NULL),
 	_linkTriggered(true), _isDocModifing(false), _isHotspotDblClicked(false), _sysMenuEntering(false),
 	_autoCompleteMain(&_mainEditView), _autoCompleteSub(&_subEditView), _smartHighlighter(&_findReplaceDlg),
 	_isFileOpening(false), _rememberThisSession(true), _pAnsiCharPanel(NULL), _pClipboardHistoryPanel(NULL)
@@ -159,19 +159,16 @@ Notepad_plus::~Notepad_plus()
 	if (_pFileSwitcherPanel)
 		delete _pFileSwitcherPanel;
 
-	if (_pProjectPanel_1)
+	if (_pProjectPanel)
 	{
-		_pProjectPanel_1->destroy();
-		delete _pProjectPanel_1;
+		delete _pProjectPanel;
 	}
 	if (_pProjectPanel_2)
 	{
-		_pProjectPanel_2->destroy();
 		delete _pProjectPanel_2;
 	}
 	if (_pProjectPanel_3)
 	{
-		_pProjectPanel_3->destroy();
 		delete _pProjectPanel_3;
 	}
 }
@@ -4674,6 +4671,55 @@ void Notepad_plus::launchAnsiCharPanel()
 	_pAnsiCharPanel->display();
 }
 
+void Notepad_plus::launchProjectPanel()
+{
+	if (!_pProjectPanel)
+	{
+		_pProjectPanel = new ProjectPanel;
+		_pProjectPanel->init(_pPublicInterface->getHinst(), _pPublicInterface->getHSelf());
+		
+		tTbData	data = {0};
+		_pProjectPanel->create(&data);
+
+		::SendMessage(_pPublicInterface->getHSelf(), NPPM_MODELESSDIALOG, MODELESSDIALOGREMOVE, (WPARAM)_pProjectPanel->getHSelf());
+		// define the default docking behaviour
+		data.uMask = DWS_DF_CONT_LEFT | DWS_ICONTAB;
+		//data.hIconTab = (HICON)::LoadImage(_pPublicInterface->getHinst(), MAKEINTRESOURCE(IDI_FIND_RESULT_ICON), IMAGE_ICON, 0, 0, LR_LOADMAP3DCOLORS | LR_LOADTRANSPARENT);
+		data.pszModuleName = NPP_INTERNAL_FUCTION_STR;
+
+		// the dlgDlg should be the index of funcItem where the current function pointer is
+		// in this case is DOCKABLE_DEMO_INDEX
+		// In the case of Notepad++ internal function, it'll be the command ID which triggers this dialog
+		data.dlgID = IDM_VIEW_PROJECT_PANEL_1;
+		::SendMessage(_pPublicInterface->getHSelf(), NPPM_DMMREGASDCKDLG, 0, (LPARAM)&data);
+	}
+	_pProjectPanel->display();
+}
+
+void Notepad_plus::launchProjectPanel2()
+{
+	if (!_pProjectPanel_2)
+	{
+		_pProjectPanel_2 = new ProjectPanel;
+		_pProjectPanel_2->init(_pPublicInterface->getHinst(), _pPublicInterface->getHSelf());
+		
+		tTbData	data = {0};
+		_pProjectPanel_2->create(&data);
+
+		::SendMessage(_pPublicInterface->getHSelf(), NPPM_MODELESSDIALOG, MODELESSDIALOGREMOVE, (WPARAM)_pProjectPanel->getHSelf());
+		// define the default docking behaviour
+		data.uMask = DWS_DF_CONT_LEFT | DWS_ICONTAB;
+		//data.hIconTab = (HICON)::LoadImage(_pPublicInterface->getHinst(), MAKEINTRESOURCE(IDI_FIND_RESULT_ICON), IMAGE_ICON, 0, 0, LR_LOADMAP3DCOLORS | LR_LOADTRANSPARENT);
+		data.pszModuleName = NPP_INTERNAL_FUCTION_STR;
+
+		// the dlgDlg should be the index of funcItem where the current function pointer is
+		// in this case is DOCKABLE_DEMO_INDEX
+		// In the case of Notepad++ internal function, it'll be the command ID which triggers this dialog
+		data.dlgID = IDM_VIEW_PROJECT_PANEL_2;
+		::SendMessage(_pPublicInterface->getHSelf(), NPPM_DMMREGASDCKDLG, 0, (LPARAM)&data);
+	}
+	_pProjectPanel_2->display();
+}
 void Notepad_plus::launchProjectPanel(int cmdID, ProjectPanel ** pProjPanel)
 {
 	if (!*pProjPanel)
diff --git a/PowerEditor/src/Notepad_plus.h b/PowerEditor/src/Notepad_plus.h
index 1cd1932b..c2cfe2eb 100644
--- a/PowerEditor/src/Notepad_plus.h
+++ b/PowerEditor/src/Notepad_plus.h
@@ -400,7 +400,7 @@ private:
 	AnsiCharPanel *_pAnsiCharPanel;
 	ClipboardHistoryPanel *_pClipboardHistoryPanel;
 	VerticalFileSwitcher *_pFileSwitcherPanel;
-	ProjectPanel *_pProjectPanel_1;
+	ProjectPanel *_pProjectPanel;
 	ProjectPanel *_pProjectPanel_2;
 	ProjectPanel *_pProjectPanel_3;
 
@@ -589,6 +589,8 @@ private:
 	void launchAnsiCharPanel();
 	void launchClipboardHistoryPanel();
 	void launchFileSwitcherPanel();
+	void launchProjectPanel();
+	void launchProjectPanel2();
 	void launchProjectPanel(int cmdID, ProjectPanel ** pProjPanel);
 };
 
diff --git a/PowerEditor/src/NppCommands.cpp b/PowerEditor/src/NppCommands.cpp
index 792a83e8..65b52552 100644
--- a/PowerEditor/src/NppCommands.cpp
+++ b/PowerEditor/src/NppCommands.cpp
@@ -300,17 +300,17 @@ void Notepad_plus::command(int id)
 
 		case IDM_VIEW_PROJECT_PANEL_1:
 		{
-			launchProjectPanel(id, &_pProjectPanel_1);
+			launchProjectPanel();
 		}
 		break;
 		case IDM_VIEW_PROJECT_PANEL_2:
 		{
-			launchProjectPanel(id, &_pProjectPanel_2);
+			launchProjectPanel2();
 		}
 		break;
 		case IDM_VIEW_PROJECT_PANEL_3:
 		{
-			launchProjectPanel(id, &_pProjectPanel_3);
+			launchProjectPanel(IDM_VIEW_PROJECT_PANEL_3, &_pProjectPanel_3);
 		}
 		break;