Hi there. I'm looking for a way to set up certain individual levels as co-op only.

https://www.speedrun.com/bwii/levels

So for the game in question, there are many solo-only levels, and also there are four co-op only levels. I was able to add co-op as a submission option, but it looks like that applies to every level rather than specific ones.

Basically that just results in a lot of blank spaces, which isn't a big deal but I was wondering if there is a more elegant way to do it.