private void OnRemoveImporterProcess(T importer)
 {
     UndoHelper.CustomImporterUndo(Data, UndoHelper.UNDO_DELETESETTING);
     CustomImporterSettings.Remove(importer);
     Initialize();
     EditorGUIUtility.keyboardControl = 0;
 }
 private void OnAddImporterProcess(T importer)
 {
     UndoHelper.CustomImporterUndo(Data, UndoHelper.UNDO_ADDSETTING);
     CustomImporterSettings.Add(importer);
     Initialize();
     EditorGUIUtility.keyboardControl = 0;
 }