def _create_action_create(self) -> QAction:
icon = QIcon.fromTheme("<STR_LIT>")<EOL>action_create = QAction(icon, "<STR_LIT>", self)<EOL>create_menu = QMenu(self)<EOL>create_menu.insertActions(None, (  <EOL>self.action_new_top_folder,<EOL>self.action_new_sub_folder,<EOL>self.action_new_phrase,<EOL>self.action_new_script<EOL>))<EOL>action_create.setMenu(create_menu)<EOL>return action_create<EOL>
The action_create action contains a menu with all four "new" actions. It is inserted into the main window
tool bar and lets the user create new items in the file tree.
QtCreator currently does not support defining such actions that open a menu with choices, so do it in code.