Basically allowing to add a single catalyst that cycle between a list of oredict, simple as that

I think it's not the intention of RecipeCatalyst system. It is designed (but not forced) to show blocks that can process given recipe categories.
How will your proposed catalysts be like?

Fair enough, I added it to my todo list

My ideas is to like allows to add catalysts for things that have like wood types so instead of having like 200 catalysts of the same item with different type of wood, just one that cycle.