Wish I could, however this would either be very complicated, or needs to be as a incompatible mod setting some references point in fort templates or something. I wanted this mod to be compatible.
What if you add the ability to snap walls to a fortress' towers? Then fortresses would be more realistic, more useful to build, and take up less space.
That patch is really old, and has been abandoned for a while now. I'll probably talk to the programmer who added it into A26 for TUN. Unless he (or somebody here) want's to update the A26 code, then I'll probably have him recode it, since it relies on a lot of other features I don't want (yet).