Anal jelly isn't related to scat or enema. It's an entire different thing. The focus is on the substance and theres all sorts of things you can do with it. Just like there is a fisting and gaping tag. The focus is different. Fisting is about insertion of a fist or large objects(penis). Gaping is about the stretching of the anus.
They may seem similar but they're 2 different fetishes. Just like anal jelly. I think it has lots of potential