I wish they have "key" items tab so we can put keys in there. :p
It's not part of the main inventory, and we don't have to worry if we threw away an important key.
I think that was the idea of the key ring - just make all of the keys go there automatically and skip your inventory entirely.
Exactly - game simply has to check your "keyring" for appropriate key when you go to open the lock. If it's there, lock opens - if not, says you don't have the correct key. If they want to be detailed, they can have a journal tab for keys, informing you which you have. But the keyring is not part of inventory, not taking up space or weight - no muss, no fuss.
