Search: 1. The position of the search window is in the middle of the scene.

2. When "Search in English" is checked, then search in English names too.
3. Added score value at the end of option name -> [score_value]
4. Set focus to the Plater, when switch from some tab with focused field to the Plater and search window is shown.
5. For the mode, when settings are in non-modal dialog, neither dialog nor tabpanel doesn't receive wxEVT_KEY_UP event, when some field is selected.
   So, like a workaround we check wxEVT_KEY_UP event for the Filed and switch between tabs if Ctrl+(1-4) was pressed

+ PreferencesDialog: fixed a control of the difference in layout modes

src/slic3r/GUI/MainFrame.cpp

@@ -28,6 +28,7 @@
 #include "RemovableDriveManager.hpp"
 #include "InstanceCheck.hpp"
 #include "I18N.hpp"
+#include "GLCanvas3D.hpp"
 
 #include <fstream>
 #include "GUI_App.hpp"
@@ -1263,6 +1264,9 @@ void MainFrame::select_tab(size_t tab/* = size_t(-1)*/)
         if (tab==0) {
             if (m_settings_dialog->IsShown())
                 this->SetFocus();
+            // plater should be focused for correct navigation inside search window
+            if (m_plater->canvas3D()->is_search_pressed())
+                m_plater->SetFocus();
             return;
         }
         // Show/Activate Settings Dialog
@@ -1278,6 +1282,10 @@ void MainFrame::select_tab(size_t tab/* = size_t(-1)*/)
     else if (m_layout == slNew) {
         m_plater->Show(tab == 0);
         m_tabpanel->Show(tab != 0);
+
+        // plater should be focused for correct navigation inside search window
+        if (tab == 0 && m_plater->canvas3D()->is_search_pressed())
+            m_plater->SetFocus();
         Layout();
     }