I think this forum is to find out how to use the program so here is something wonderful I do believe was not mentioned in the tutorial. You can change the ‘origin’ of rotation and scaling! I think I’ve only ever seen that in Flash and it’s a great feature that I wish art programs had.
Basically, there is a */star shaped symbol when transforming with the lasso, if you move it you can rotate along where you move it to! Very handy for squash/stretch and rotating heads and limbs.