When lookup tables are used to provide combo lists with options, one method is to use the NotInList method, which avoids having to use a form
By that I was referring to a form just used to populate the lookup table. Obviously if you are using a combo on a form, you are using a form, but that would be your data entry/edit form. If you don't know what NotInList is then you can look that up.
I haven't been following this thread in any detail - just commenting on populating lists for controls and whether or not you should/must use forms for that purpose. I'd have to start reviewing from the beginning before I could comment on your design.
The more we hear silence, the more we begin to think about our value in this universe.
Paraphrase of Professor Brian Cox.