How do I made custom animation sets?

When I created or edit a weapon, in the Art tab options you can choose animation set, like SingleHandedAxe animations that carry all the animations used by the various weapon types. But I want to create a custom animation set. I want to make an animation set that uses specific animations and not others, and also choose animations and not have my weapon treated like a bow or a sword.

So is there a way to make my own animation sets so that I can use various animations and treat it like a different weapon, such as a dagger that shoots arrows?