Yes, I’m sorry, I didn’t describe it so well.
I would like to restrict the resource Class of chosen Resource type. Let’s say I want Property DC:Contributor to be data type Resource: Item, but only items with Class DC: Agent. So only items with chosen class(es) will be offered.
In front, adding multi-select with all available classes when Resource data type is selected could solve it? And in DB, some restriction column with serialized data?
I hope it’s more clear what I’m after.