Replaceing the model for mothership is useless

I just finished trying that heavy mothership tutorial that adds turrets (/w actors) onto the mothership. I tried three times trying to get it to work before i got fed up and just edited the file. I wanted a battlecruiser with two side turrets, while that worked out fine. The battlecruiser wont turn. It moves around exactly like the mothership or immortal would. And i have no idea what setting you need to turn off to enable a unit that can face objects. Any help?

unit properties - you got a flag at a certain property about movement. check which flag your unit has in common with the mothership, dunno how it's called in english right now

Yeah i tried looking up and down the movement options on the unit but i see none that are any different from eg. Mutalisk or battlecruiser. Thats what confuses me about the whole thing.

*Edit* YAY it was in unit - flags and i had to enable turnable. +rep for the help