I was thinking whilst making my platformer there could be some cool features too add. I think it would be beneficial to build level pieces from a collection of sprites and the manipulate them in the editor as a whole group. Also painting sprites to the grid.
I think these would speed up and add to the complexity C2 Levels. Also I know the beast lord masters of Scrrrrrr have more pressing matters with making this awesome software but I think these types of additions would be great.