No, I can;t. This would be extremely wasteful and sloppy, to have EVERY possible tile width/height combination PER LAYER tHat a user could possibly choose, all sitting there waiting to be used.
Why do you "strongly doubt" the feature would be added? It's a very simple feature to add which already exists in the editor? it's only run-time access to edit those two settings that is needed.
Since im not sure what you are making, I can't say anything regarding your design, so I just trust that you need it
Why I don't think it will be added, is because I haven't notice any new things really being added to C2 for a long time, except some bug fixes and some more IOS and Windows 10 stuff. And there are lots of people that have suggested features far simpler than yours, that haven't been. So its not because I think your idea is bad, its just that based on the last updates, I just don't see it happening.