Basically, no matter what I try, I cannot get the manipulator tool to become visible! I have tried hotkeys, reset preferences, and checked display settings. I am working on the cartoon dog tutorial and it seems little yellow circular icons should show up in the center of each selected object so that I can move them to the center axis in or do duplicate the pup's left legs and ear to the right. The tutorial explains what to do in windows, but I have a mac. Any help would be greatly appreciated!