I saw the other thread and an idea suddenly clicked, but I didn't want to take away the meaning of the other thread by posting this there.
I was wondering how easy it is to replace one of the formation-stencil-thingys (you know, when you group units together you can then press SHIFT+number to make them into snazzy formations)..
The reason I ask is I really want the column formation back! It's so hard to manage city-seiges without it... if I replaced it would it mess up the ai-formations? Like... if I replaced "barbarian horde" with column, would the barbarians start out their battles in columns?
Basically, how easy is it and does it affect anything else?