Without an example to look at, offhand I would say you could use a text field or a label along with wildcards to find your objects.
I agree with Marsha_R... whether you are using direct element identification in your scripts or if you're using NameMapping, you can use any number of properties and such for any application object to uniquely identify it. If the ID changes dynamically, obviously that's not a useful property so labels, class, type, child objects, etc., all can play a part in uniquely identifying objects. I'd strongly suggest using NameMapping as that allows a great amount of detail in identifying behind the scenes without needing to include that detail in your actual keyword tests or scripts.
