UD Customization Missing Part Adapter


I am trying to add an Ultra Combo to a UD form to allow searching and choosing a Part Number. I am using the Retriever and chose Part Adapter from the Available Adapters list. In the list below 'Available Adapter Combos', I'm expecting to see or PartCombo but it's not there. I see only the following: PartAltRevcombo, PartDimCombo, PartLotCombo, PartLotDemandCombo, PartPlantCombo,PartRevCombo,PartWarehouseCombo.

None of the above Adapter Combos will give me what I need, which is simply a Part Chooser.

Am I having a PEBKAC?

Thanks in advance,

Randy Weber