Are you saying you need only one more category to be added for now?
What I meant is that previously I had said that all schemes deserve a new category, but that would be a very big change and also infinite, because every time a new scheme be added, a new category would be needed, making a huge list. That comment might had weakened my suggestion, so I said that at least one more category on TUS maps would be a progress, since they are the same for years. It's better than nothing. However, of course I would prefer more.
But thinking on this hypothesis of one single extra map category to be added on TUS, what I would suggest is to split Miscellaneous one into Creative/Original ideas and Generic maps.
This would be great to make people easily find new schemes/new map designs/new ideas without needing to search in the middle of hundreds of maps designed for any schemes (usually normal gameplay schemes), maps that the player made but not for a specific scheme in mind, maps that are basically one cool image that someone wanted to transform into a map, without thinking on a scheme.
So, basically, I think that in an ideal scenario schemes that already have more than 5 maps made by different players could receive a proper category, specially if the scheme already has competitive events. All those other schemes that have only 1 map or 2 made by 1 guy only should go to the Creative ideas category. Generic/multiple schemes maps category would be the real Miscellaneous one.