Sorry, I'll try to re-explain! I am using Aseprite, so your suggestion to export ortho & edit would work, but if I want to edit the "side" image then I have to update all of the first 5 sprites too.
It'd be nice if there were maybe a "import" button that could handle spritesheets that aren't ortho images? For example, maybe it could work like this:
1 sprite = use sprite for all sides
2 sprites = 1st sprite for all sides, 2nd for top
3 sprites = 1st sprite for side, 2nd sprite for front, 3rd sprite for top,
...etc
If I imported this (2 sprites):
I would get this:
