Yes, especially Engie is really helpful in this regard. There are two problems I want to find a solution for, one is the LZW compression of BMPs which Engie cannot handle, and the second is that Engie hangs when you try to save over a certain amount of frames to a sprite BMP with internal type SCN/OFF.
Take the "TOWER" BMP files for example. There are four of them, that builds up the bridge views in 4 parts, covering 90 degrees each. They are all Dynamix BMP sprite files, 16 frames in each BMP. The internal palette is greyscale, type "SCN" with compression off. But when I try to save my own modified BMPs (I have tried many different approaches), Engie hangs when saving to SCN/OFF. I have yet to try to change all frames though, so I am not 100% if I am doing it right..
I would very much like this new bridge with lookout concept to work, and maybe improve the internal view of the tower a bit. This is frame 0 of TOWER1.BMP, with my own sprite added:
