Hey guys, I am a Grinning Cobossus moderator, and I want to put sub-categoris for he difficults of the game, but I don't know how do it, I try look at another threads but, all of it are from 4 or 5 years ago and don't work anymore. I try this in the "Variables" part, but I don't know how to do it.

under the variables tab create a new variable, then give it new values (the values will be the actual subcategories) and then you click the three dots on the variable, hit edit variable and toggle the "use as subcategory" option