I am trying to find a method that I can call, that has the value of what the current page is. 

e.g. 

BASE_CMP_Menu::getCurrentPageId() or

BASE_CMP_MainMenu::getActivePageKey() or

BASE_CMP_Menu::getCurrentPageKey()

Looking for Id or Key or my own database column. 

I have been looking in database: ow_base_menu_items and see the records in there have Id's and Keys. But I cannot find where the method is, so that I can create some new button actions. 

Thank very much.