diff --git a/src/MainWindow.cpp b/src/MainWindow.cpp
index d07d93f..7078076 100644
--- a/src/MainWindow.cpp
+++ b/src/MainWindow.cpp
@@ -13,49 +13,34 @@ wxDEFINE_EVENT(REFRESH_ENGINE_LIST, wxCommandEvent);
 /// ---------- MainWindow ----------
 
 MainWindow::MainWindow()
-    : wxFrame(NULL, wxID_ANY, "OChess: The Open Chess software",
-              wxDefaultPosition, wxSize(1500, 1000)),
+    : MainFrame(NULL, wxID_ANY, "OChess: The Open Chess software",
+                wxDefaultPosition, wxSize(1500, 1000)),
       prefsEditor(NULL) {
-  CreateStatusBar();
   SetStatusText("OChess");
 
   /// File menu
-  wxMenu *menuFile = new wxMenu;
-  menuFile->Append(1, "Open", "Open file");
-  menuFile->AppendSeparator();
-  menuFile->Append(10, "Save", "Save current game");
-  menuFile->Append(11, "Save As", "Save current game as");
-  menuFile->AppendSeparator();
-  menuFile->Append(4, "Settings", "Configure OChess");
-  menuFile->AppendSeparator();
-  menuFile->Append(wxID_EXIT);
+  menu_file->Append(1, "Open", "Open file");
+  menu_file->AppendSeparator();
+  menu_file->Append(10, "Save", "Save current game");
+  menu_file->Append(11, "Save As", "Save current game as");
+  menu_file->AppendSeparator();
+  menu_file->Append(4, "Settings", "Configure OChess");
+  menu_file->AppendSeparator();
+  menu_file->Append(wxID_EXIT);
 
   // Game menu
-  menuGame = new wxMenu;
-  menuGame->Append(2, "New", "Create new game");
-  menuGame->Append(3, "New from FEN", "Create new game using FEN");
+  menu_game->Append(2, "New", "Create new game");
+  menu_game->Append(3, "New from FEN", "Create new game using FEN");
 
   // Game base menu
-  wxMenu *menuBase = new wxMenu;
-  menuBase->Append(5, "New", "Create new database");
+  menu_db->Append(5, "New", "Create new database");
 
   // Engine menu
-  wxMenu *engineMenu = new wxMenu;
-  engineMenu->Append(6, "New", "Create a new engine configuration");
+  menu_engine->Append(6, "New", "Create a new engine configuration");
   manageMenu = new wxMenu;
-  engineMenu->AppendSubMenu(manageMenu, "Manage");
-
-  /// Menu bar
-  menuBar = new wxMenuBar;
-  menuBar->Append(menuFile, "&File");
-  menuBar->Append(menuGame, "&Game");
-  menuBar->Append(menuBase, "&Database");
-  menuBar->Append(engineMenu, "&Engines");
-  SetMenuBar(menuBar);
-
-  // Create the wxNotebook widget
-  notebook = new wxAuiNotebook(this, wxID_ANY);
-  NewGame(new Game());
+  menu_engine->AppendSubMenu(manageMenu, "Manage");
+  wxCommandEvent dummy(REFRESH_ENGINE_LIST, GetId());
+  OnRefreshEngineList(dummy);
 
   Bind(wxEVT_AUINOTEBOOK_PAGE_CHANGED, &MainWindow::OnPageChange, this,
        wxID_ANY);
@@ -66,18 +51,8 @@ MainWindow::MainWindow()
   Bind(wxEVT_MENU, &MainWindow::OnMenuItemClick, this, wxID_ANY);
   Bind(REFRESH_ENGINE_LIST, &MainWindow::OnRefreshEngineList, this, wxID_ANY);
 
-  /*BaseTab *bt = new BaseTab((wxFrame *)notebook,
-  "/home/loic/hartwig_tests.pgn"); notebook->AddPage(bt, bt->GetLabel());
-  notebook->SetSelection(notebook->GetPageIndex(bt));*/
-  /*
-    EngineTab *bt =
-        new EngineTab((wxWindow *)notebook,
-                      new uciadapter::UCI("/home/loic/.local/bin/stockfish"),
-                      "/home/loic/.local/bin/stockfish");
-    notebook->AddPage(bt, bt->GetLabel());
-    notebook->SetSelection(notebook->GetPageIndex(bt));*/
-  wxCommandEvent dummy(REFRESH_ENGINE_LIST, GetId());
-  OnRefreshEngineList(dummy);
+  // Add new game tab by default
+  NewGame(new Game());
 }
 
 void MainWindow::OnCloseTabEvent(wxCommandEvent &event) {
@@ -108,6 +83,8 @@ void MainWindow::OnMenuItemClick(wxCommandEvent &event) {
     NewGame(true);
   } else if (id == 4) {
     OpenSettings();
+  } else if (id == 5) {
+    OpenFile();
   } else if (id == 6) {
     NewEngine();
   }
@@ -222,8 +199,8 @@ void MainWindow::OnPageChange(wxAuiNotebookEvent &event) {
   TabInfos *infos = dynamic_cast<TabInfos *>(notebook->GetCurrentPage());
   if (infos->type != TabInfos::GAME) {
     for (short i = 10; i < 20; i++) {
-      if (menuGame->FindChildItem(i) != NULL) {
-        menuGame->Enable(i, false);
+      if (menu_game->FindChildItem(i) != NULL) {
+        menu_game->Enable(i, false);
       }
     }
   }
diff --git a/src/MainWindow.hpp b/src/MainWindow.hpp
index 4fa3318..c223701 100644
--- a/src/MainWindow.hpp
+++ b/src/MainWindow.hpp
@@ -13,10 +13,7 @@ wxDECLARE_EVENT(NEW_GAME_EVENT, wxCommandEvent);
 wxDECLARE_EVENT(CLOSE_TAB_EVENT, wxCommandEvent);
 wxDECLARE_EVENT(REFRESH_ENGINE_LIST, wxCommandEvent);
 
-class MainWindow : public wxFrame {
-  wxAuiNotebook *notebook;
-  wxMenu *menuGame;
-  wxMenuBar *menuBar;
+class MainWindow : public MainFrame {
   wxPreferencesEditor *prefsEditor;
   wxMenu *manageMenu;
 
diff --git a/src/game_tab/GameTab.cpp b/src/game_tab/GameTab.cpp
index cf49991..c3aceb8 100644
--- a/src/game_tab/GameTab.cpp
+++ b/src/game_tab/GameTab.cpp
@@ -7,8 +7,7 @@ GameTab::GameTab(wxFrame *parent, Game *game)
     : wxPanel(parent), game(game), TabInfos(TabInfos::GAME) {
   // Splitter
   wxSplitterWindow *splitter = new wxSplitterWindow(this, wxID_ANY);
-  splitter->SetMinimumPaneSize(100);
-
+  splitter->SetSashGravity(0.8);
   // Panels
   game->BuildAndVerify();
   board_panel = new GameTabLeftPanel((wxFrame *)splitter, game);
diff --git a/src/game_tab/left_panel/GameTabLeftPanel.cpp b/src/game_tab/left_panel/GameTabLeftPanel.cpp
index bc33d33..d4c415d 100644
--- a/src/game_tab/left_panel/GameTabLeftPanel.cpp
+++ b/src/game_tab/left_panel/GameTabLeftPanel.cpp
@@ -13,13 +13,15 @@ GameTabLeftPanel::GameTabLeftPanel(wxFrame *parent, Game *game)
   zoomin_button->SetBitmapLabel(LoadPNG("zoomin"));
   zoomout_button->SetBitmapLabel(LoadPNG("zoomout"));
 
+  // Configure FEN field
+  fen_text_field->SetFont(wxFont(*wxSMALL_FONT).Bold());
+
   Bind(PLAY_MOVE_EVENT, &GameTabLeftPanel::OnPlay, this, wxID_ANY);
   Bind(PREVIOUS_MOVE_EVENT, &GameTabLeftPanel::OnPreviousMove, this, wxID_ANY);
   Bind(NEXT_MOVE_EVENT, &GameTabLeftPanel::OnNextMove, this, wxID_ANY);
   Bind(wxEVT_BUTTON, &GameTabLeftPanel::OnSwap, this, SWAP_BTN);
   Bind(wxEVT_BUTTON, &GameTabLeftPanel::OnZoomIn, this, ZOOM_IN_BTN);
   Bind(wxEVT_BUTTON, &GameTabLeftPanel::OnZoomOut, this, ZOOM_OUT_BTN);
-  Bind(wxEVT_BUTTON, &GameTabLeftPanel::OnCopyFEN, this, COPY_FEN_BTN);
 }
 
 void GameTabLeftPanel::OnPreviousMove(wxCommandEvent &event) {
@@ -58,14 +60,6 @@ void GameTabLeftPanel::OnPlay(wxCommandEvent &event) {
   Notify();
 }
 
-void GameTabLeftPanel::OnCopyFEN(wxCommandEvent &event) {
-  wxLogDebug("Clicked on copy fen");
-  if (wxTheClipboard->Open()) {
-    wxTheClipboard->SetData(new wxTextDataObject(game->GetFen()));
-    wxTheClipboard->Close();
-  }
-}
-
 void GameTabLeftPanel::Notify() {
   std::string fen = game->GetFen();
   std::map<char, std::uint8_t> captures;
@@ -75,6 +69,7 @@ void GameTabLeftPanel::Notify() {
   }
   board_canvas->SetupBoard(chessarbiter::FENParser::Parse(fen).board,
                            game->IsBlackToPlay(), captures);
+  fen_text_field->SetValue(game->GetFen());
 }
 
 void GameTabLeftPanel::NotifyEditor() {
diff --git a/src/game_tab/left_panel/GameTabLeftPanel.hpp b/src/game_tab/left_panel/GameTabLeftPanel.hpp
index d2ad3f1..c4b58b9 100644
--- a/src/game_tab/left_panel/GameTabLeftPanel.hpp
+++ b/src/game_tab/left_panel/GameTabLeftPanel.hpp
@@ -20,7 +20,6 @@ public:
   void OnGotoMove(wxCommandEvent &event);
   void OnPreviousMove(wxCommandEvent &event);
   void OnNextMove(wxCommandEvent &event);
-  void OnCopyFEN(wxCommandEvent &event);
   void OnZoomIn(wxCommandEvent &event);
   void OnZoomOut(wxCommandEvent &event);
   void OnSwap(wxCommandEvent &event);
diff --git a/src/gui.cpp b/src/gui.cpp
index 9091001..897ef15 100644
--- a/src/gui.cpp
+++ b/src/gui.cpp
@@ -428,17 +428,17 @@ TabGameLeftPanel::TabGameLeftPanel( wxWindow* parent, wxWindowID id, const wxPoi
 	wxBoxSizer* bar_sizer;
 	bar_sizer = new wxBoxSizer( wxHORIZONTAL );
 
-	swap_button = new wxBitmapButton( this, SWAP_BTN, wxNullBitmap, wxDefaultPosition, wxDefaultSize, wxBU_AUTODRAW|0 );
-	bar_sizer->Add( swap_button, 0, wxALL|wxEXPAND, 5 );
+	swap_button = new wxBitmapButton( this, SWAP_BTN, wxNullBitmap, wxDefaultPosition, wxDefaultSize, wxBU_AUTODRAW|wxBORDER_NONE );
+	bar_sizer->Add( swap_button, 0, wxALL|wxEXPAND, 3 );
 
-	zoomin_button = new wxBitmapButton( this, ZOOM_IN_BTN, wxNullBitmap, wxDefaultPosition, wxDefaultSize, wxBU_AUTODRAW|0 );
-	bar_sizer->Add( zoomin_button, 0, wxALL|wxEXPAND, 5 );
+	zoomin_button = new wxBitmapButton( this, ZOOM_IN_BTN, wxNullBitmap, wxDefaultPosition, wxDefaultSize, wxBU_AUTODRAW|wxBORDER_NONE );
+	bar_sizer->Add( zoomin_button, 0, wxALL|wxEXPAND, 3 );
 
-	zoomout_button = new wxBitmapButton( this, ZOOM_OUT_BTN, wxNullBitmap, wxDefaultPosition, wxDefaultSize, wxBU_AUTODRAW|0 );
-	bar_sizer->Add( zoomout_button, 0, wxALL|wxEXPAND, 5 );
+	zoomout_button = new wxBitmapButton( this, ZOOM_OUT_BTN, wxNullBitmap, wxDefaultPosition, wxDefaultSize, wxBU_AUTODRAW|wxBORDER_NONE );
+	bar_sizer->Add( zoomout_button, 0, wxALL|wxEXPAND, 3 );
 
-	copy_fen_button = new wxButton( this, COPY_FEN_BTN, wxT("Copy FEN"), wxDefaultPosition, wxDefaultSize, 0 );
-	bar_sizer->Add( copy_fen_button, 0, wxALL|wxEXPAND, 5 );
+	fen_text_field = new wxTextCtrl( this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize( -1,-1 ), wxTE_READONLY );
+	bar_sizer->Add( fen_text_field, 1, wxALL|wxEXPAND, 0 );
 
 
 	main_sizer->Add( bar_sizer, 0, wxEXPAND, 5 );
diff --git a/src/gui.h b/src/gui.h
index 6c52418..e5dae19 100644
--- a/src/gui.h
+++ b/src/gui.h
@@ -53,11 +53,10 @@
 #define SWAP_BTN 1009
 #define ZOOM_IN_BTN 1010
 #define ZOOM_OUT_BTN 1011
-#define COPY_FEN_BTN 1012
-#define COMMENT_INPUT_BOX 1013
-#define UPDATE_BTN 1014
-#define DELETE_BTN 1015
-#define LIVE_ANALYSIS_GAME_BUTTON 1016
+#define COMMENT_INPUT_BOX 1012
+#define UPDATE_BTN 1013
+#define DELETE_BTN 1014
+#define LIVE_ANALYSIS_GAME_BUTTON 1015
 
 ///////////////////////////////////////////////////////////////////////////////
 /// Class MainFrame
@@ -260,11 +259,11 @@ class TabGameLeftPanel : public wxPanel
 		wxBitmapButton* swap_button;
 		wxBitmapButton* zoomin_button;
 		wxBitmapButton* zoomout_button;
-		wxButton* copy_fen_button;
+		wxTextCtrl* fen_text_field;
 
 	public:
 
-		TabGameLeftPanel( wxWindow* parent, wxWindowID id = wxID_ANY, const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxSize( 500,300 ), long style = wxTAB_TRAVERSAL, const wxString& name = wxEmptyString );
+		TabGameLeftPanel( wxWindow* parent, wxWindowID id = wxID_ANY, const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxSize( 998,410 ), long style = wxTAB_TRAVERSAL, const wxString& name = wxEmptyString );
 
 		~TabGameLeftPanel();
 
diff --git a/tools/wxFrameBuilder.fbp b/tools/wxFrameBuilder.fbp
index b02a8a4..d7cf014 100644
--- a/tools/wxFrameBuilder.fbp
+++ b/tools/wxFrameBuilder.fbp
@@ -4173,7 +4173,7 @@
             <property name="minimum_size"></property>
             <property name="name">TabGameLeftPanel</property>
             <property name="pos"></property>
-            <property name="size">500,300</property>
+            <property name="size">998,410</property>
             <property name="subclass">; ; forward_declare</property>
             <property name="tooltip"></property>
             <property name="two_step_creation">0</property>
@@ -4189,16 +4189,16 @@
                     <property name="border">5</property>
                     <property name="flag">wxEXPAND</property>
                     <property name="proportion">0</property>
-                    <object class="wxBoxSizer" expanded="1">
+                    <object class="wxBoxSizer" expanded="0">
                         <property name="minimum_size"></property>
                         <property name="name">bar_sizer</property>
                         <property name="orient">wxHORIZONTAL</property>
                         <property name="permission">none</property>
-                        <object class="sizeritem" expanded="1">
-                            <property name="border">5</property>
+                        <object class="sizeritem" expanded="0">
+                            <property name="border">3</property>
                             <property name="flag">wxALL|wxEXPAND</property>
                             <property name="proportion">0</property>
-                            <object class="wxBitmapButton" expanded="1">
+                            <object class="wxBitmapButton" expanded="0">
                                 <property name="BottomDockable">1</property>
                                 <property name="LeftDockable">1</property>
                                 <property name="RightDockable">1</property>
@@ -4254,7 +4254,7 @@
                                 <property name="resize">Resizable</property>
                                 <property name="show">1</property>
                                 <property name="size"></property>
-                                <property name="style"></property>
+                                <property name="style">wxBORDER_NONE</property>
                                 <property name="subclass">; ; forward_declare</property>
                                 <property name="toolbar_pane">0</property>
                                 <property name="tooltip"></property>
@@ -4267,11 +4267,11 @@
                                 <property name="window_style"></property>
                             </object>
                         </object>
-                        <object class="sizeritem" expanded="1">
-                            <property name="border">5</property>
+                        <object class="sizeritem" expanded="0">
+                            <property name="border">3</property>
                             <property name="flag">wxALL|wxEXPAND</property>
                             <property name="proportion">0</property>
-                            <object class="wxBitmapButton" expanded="1">
+                            <object class="wxBitmapButton" expanded="0">
                                 <property name="BottomDockable">1</property>
                                 <property name="LeftDockable">1</property>
                                 <property name="RightDockable">1</property>
@@ -4327,7 +4327,7 @@
                                 <property name="resize">Resizable</property>
                                 <property name="show">1</property>
                                 <property name="size"></property>
-                                <property name="style"></property>
+                                <property name="style">wxBORDER_NONE</property>
                                 <property name="subclass">; ; forward_declare</property>
                                 <property name="toolbar_pane">0</property>
                                 <property name="tooltip"></property>
@@ -4340,11 +4340,11 @@
                                 <property name="window_style"></property>
                             </object>
                         </object>
-                        <object class="sizeritem" expanded="1">
-                            <property name="border">5</property>
+                        <object class="sizeritem" expanded="0">
+                            <property name="border">3</property>
                             <property name="flag">wxALL|wxEXPAND</property>
                             <property name="proportion">0</property>
-                            <object class="wxBitmapButton" expanded="1">
+                            <object class="wxBitmapButton" expanded="0">
                                 <property name="BottomDockable">1</property>
                                 <property name="LeftDockable">1</property>
                                 <property name="RightDockable">1</property>
@@ -4400,7 +4400,7 @@
                                 <property name="resize">Resizable</property>
                                 <property name="show">1</property>
                                 <property name="size"></property>
-                                <property name="style"></property>
+                                <property name="style">wxBORDER_NONE</property>
                                 <property name="subclass">; ; forward_declare</property>
                                 <property name="toolbar_pane">0</property>
                                 <property name="tooltip"></property>
@@ -4414,10 +4414,10 @@
                             </object>
                         </object>
                         <object class="sizeritem" expanded="1">
-                            <property name="border">5</property>
+                            <property name="border">0</property>
                             <property name="flag">wxALL|wxEXPAND</property>
-                            <property name="proportion">0</property>
-                            <object class="wxButton" expanded="1">
+                            <property name="proportion">1</property>
+                            <object class="wxTextCtrl" expanded="1">
                                 <property name="BottomDockable">1</property>
                                 <property name="LeftDockable">1</property>
                                 <property name="RightDockable">1</property>
@@ -4426,54 +4426,44 @@
                                 <property name="aui_name"></property>
                                 <property name="aui_position"></property>
                                 <property name="aui_row"></property>
-                                <property name="auth_needed">0</property>
                                 <property name="best_size"></property>
                                 <property name="bg"></property>
-                                <property name="bitmap"></property>
                                 <property name="caption"></property>
                                 <property name="caption_visible">1</property>
                                 <property name="center_pane">0</property>
                                 <property name="close_button">1</property>
                                 <property name="context_help"></property>
                                 <property name="context_menu">1</property>
-                                <property name="current"></property>
-                                <property name="default">0</property>
                                 <property name="default_pane">0</property>
-                                <property name="disabled"></property>
                                 <property name="dock">Dock</property>
                                 <property name="dock_fixed">0</property>
                                 <property name="docking">Left</property>
                                 <property name="enabled">1</property>
                                 <property name="fg"></property>
                                 <property name="floatable">1</property>
-                                <property name="focus"></property>
                                 <property name="font"></property>
                                 <property name="gripper">0</property>
                                 <property name="hidden">0</property>
-                                <property name="id">COPY_FEN_BTN</property>
-                                <property name="label">Copy FEN</property>
-                                <property name="margins"></property>
-                                <property name="markup">0</property>
+                                <property name="id">wxID_ANY</property>
                                 <property name="max_size"></property>
                                 <property name="maximize_button">0</property>
                                 <property name="maximum_size"></property>
+                                <property name="maxlength"></property>
                                 <property name="min_size"></property>
                                 <property name="minimize_button">0</property>
                                 <property name="minimum_size"></property>
                                 <property name="moveable">1</property>
-                                <property name="name">copy_fen_button</property>
+                                <property name="name">fen_text_field</property>
                                 <property name="pane_border">1</property>
                                 <property name="pane_position"></property>
                                 <property name="pane_size"></property>
                                 <property name="permission">protected</property>
                                 <property name="pin_button">1</property>
                                 <property name="pos"></property>
-                                <property name="position"></property>
-                                <property name="pressed"></property>
                                 <property name="resize">Resizable</property>
                                 <property name="show">1</property>
-                                <property name="size"></property>
-                                <property name="style"></property>
+                                <property name="size">-1,-1</property>
+                                <property name="style">wxTE_READONLY</property>
                                 <property name="subclass">; ; forward_declare</property>
                                 <property name="toolbar_pane">0</property>
                                 <property name="tooltip"></property>
@@ -4481,6 +4471,7 @@
                                 <property name="validator_style">wxFILTER_NONE</property>
                                 <property name="validator_type">wxDefaultValidator</property>
                                 <property name="validator_variable"></property>
+                                <property name="value"></property>
                                 <property name="window_extra_style"></property>
                                 <property name="window_name"></property>
                                 <property name="window_style"></property>