An item class is always referred to with the word item before the word class.

When an action is performed on an item class of action bars within regions in a region class, that action is performed on the item in each region in the region class before another item is acted upon. For example, if you request the make invisible action, that action is performed on each action in the region class before another action is performed.

Note:        If an item was referenced as item ITEM_NAME from AB_NAME when the item was added to the item class, then it must be referenced the same way in the delete item statement. If from AB_NAME was not specified when the item was added to the item class, then it should not be specified in the delete item statement.