>>395306048
They'll tell you to do it manually, but CATS provides a lot of things you can't do manually.
Making root bones for your hair is definitely something you should do manually, though. Just duplicate the head bone in armature edit mode, reparent the duplicate to the head, then reparent all hair bones to that root bone. There's usually no reason to have more than 2 or so components for the whole hair (assuming you separate front and back, which isn't always necessary)