I dont know if this is possible but I feel like it may be, Its kinda easier when selling then buying of course to just be able to do /shops find wanted and get the correct key but its harder to find shops when you dont own the key if you want to buy it so yeah thats my suggestion
Honestly YES, like... I've seen people be like "who is selling a legendary key?" then someone tells them to do /shops find, when if it's a server custom item, it doesn't work unless you hold the item in your hand?
Would be very helpful. Helps with any custom named item that you don't currently own. I find myself having to ask someone to borrow their item just so I can /shops find it.
Fax. Maps, tropical fish, and more could also be easier to find too since its super difficult to search them up normally.