Basically as the title says, could a seperate category be made for the expert map on its own? I know 100% already exists but from what I gather from the rules that also includes the first map as well as the six challenges. It seems like a major oversight to not give it its own category.

The challenges will be a separate category soon

In my opinion only 2 main categories are needed (Any%) and (Any% expert)
100% currently is something people will never do because it requires to do everything in game and game most likely crashes at least once before 100% is completed and i don't think i have ever started new map more than 6 times before i have to restart the game. 

Also i think All 5 challenge mode speedruns should be in misc. tab. Challenge 6 is not a speedrun level so that is not needed in board. 

Also level speedruns will be weird because timing would have to be started right when you enter the screen of new level and that is usually during wall climb. Text that appears on the screen when level changes is on timer so there is no frame to start the level from. 

So my suggestions for board: 
Main categories: Any% and Any% Expert
Misc. categories: Challenge 1, Challenge 2 and so forth

That way every level is covered at least for people to submit runs.

I have updated the categories, let me know if anything else needs changing. We are in talks about the ILs and will update soon.