Nieh, to be honest I dont give a crap, else I wouldnt have given ya all ma work! xd
Good to hear it helped ya, cause this was actually simple for me. I am expert in GML programming and GUI was kind of like programming, but more easy and buggy! Dont be shy to ask if ya need more help! A just luuuuuuuv this programming part to be honest, making stuff work and to come alive. ^^
Ummmm ... I think I have a solution to the barracks-like collision replacement, but gonna be kind of more complexive by using array var. Each unit around the building gonna have to be picked and saved in the array var and their original positions. Moving the units, then replacing the buildings, and then returning the units back! ... Maybe I should make an example?