I have a lot of geometric shapes from the "art shape" category that together form a single sculpture. Currently, the game seems to always treat these as individual objects, and when I use the multi-selection tool to select them all, I cannot directly change their color. I am talking about not just a handful, but 20 and more, some of which may be at difficult to reach angles, and I don't want to have to recolor each object individually, especially since my plan is to save the final object as a "blank" blueprint that should be easy to recolor when used in a park.