Have game remember building orientation so when placing a few factories at a time i don't have to keep orienting them one by one (so the tanks have a place to roll out). edit: posted in wrong forum
Buildings do this if you are placing them near each other already. I don't think for isolated buildings it matters much if it is the same orientation as the last one. You don't really care if a radar is orientated any which way, but for factorys just place one in the direction you want it and the rest will click into place you put them beside each other.
