Topic: For the Administrator: Proxys

Would you consider adding a setting for "Proxy" on the Condition tab?
As a casual player, part of a casual group, we decided to purchase a few hundred of the all time greats to make a cube out of, and I would like to catalog those, but have no way to do that I can find. An added plus to that would be for their value to show up as "null" or "DNP", or some such, so as not to spoil the collection valuation feature...
(feel free to PM me if this is a private topic) Thanks so much!