When I go to edit asset metadata I can bring up the (empty) list of lookup filters but I can't add one because there are no buttons to do so.
Only some of our products should be selectable as assets (some are services and we use the asset object as part of a stock control system, so intangible products should be left out), but I cannot find for the life of me how to add that as a lookup filter.
Also, I can't seem to add assets from the asset product view. Is this something salesforce decided nobody would ever need by themselves, along with quite a lot else it would seem?