Need help loading Advancements, Functions, and Structures from external files

Hey,

I've been working on a mod that lets players package up recipes, loot tables, advancements, functions, and structures into a zip file and load them into the game from a certain folder. That way they will load for every world more like a mini-mod, and they can share it.

I've gotten loot tables to load easily enough because of the loot table load event, and recipes I just parse and load when the mod loads. However, I don't see a good way to load advancements, functions, or structures... especially since they can be reloaded anytime with the /reload command.

Does anyone know of a way to load them, which respects the /reload command to reload them? If not, I can try creating a pull request in MinecraftForge to add events when they load (like how the loot table one works). I figured I'd see if anyone knows a way to do it currently first though, so I don't waste my time. =)

Tmtravlr