I don't believe this is a thing, correct me if I'm wrong-

When searching for trades, there are a list of mutations you can choose from to look for. But what if you just want to see what kind of muties other people have for sale, rather than go through the list manually?

Say you like manes. There are a lot of AMP types to look through- or maybe you like dwarves and leopons. But if it were avaliable in the searching too, you could look through any existing mutation for sale at once.

Alternatively, you could select multiple mutation types and only see what kinds of lions with those specific mutations are available.