Space for Anything... again

This might be a really dumb question, but how do you make track specific challenges in a multi cup? Right now, when I press “make challenge” in my multi cup, it has challenges for the multicup, not a specific track. How can I make track challenges for a multicup?

.....make the challanges in the track's page instead of the multicup's?

Oh, ok. I’m really silly for not knowing that. Thanks!