The action ac/list_screens allows you to register your own ListScreens for Admin Columns. If you have a plugin that uses it’s own page structure and you want to enable Admin Column for your WP_List_Table pages, you can consider to create your own List Screen.


 * Action to register custom ListScreens for Admin Columns
 * @param CPAC $ac
function my_ac_list_screens( $ac ){
	// Register custom List Screen of AC_ListScreen instance
	// $ac->register_list_screen( new AC_ListScreen() );
add_action( 'ac/list_screens', 'my_ac_list_screens' );