At the screen of choosing the add-on items, if multiple room types have been selected, a list of selected room types will show on top of the add-on items list.

Select the room type before you choose the add-on items for this room type.

Note: The add-on items that are available for selection may be different for each room type, depending on what products the add-on item was set up to associate with (see Managing Add-Ons for details.