This is more to help with organization and ease of access in-engine
But once you start making tons of procedures, the list of procedures that you can assign to an Apparance Entity can become unwieldy.
It would be amazing if you could mark some Categories as “Internal” or “Utilitarian” in a way they are hidden from the Drop-Down in the engine.
e.g. I have a Procedure that Takes a frame as input and spits out a list of frames as an output. It’s utilitarian, putting it in an entity in the game won’t do anything, so I’d rather it sit on an invisible list.