Thank you so much I'm so stupid and somehow missed that part in his video. Cheers!

i just followed the "How I make maps in Superfighters Deluxe" tutorial by vitamin e on youtube
he goes over it near the end

Hey there! Cool map! Also, do you think you could help me figure out how to add a thumbnail? I've tried to add it via the workshop uploader in-game but it just says no image. All good if not!