I figured out the problem. I had to purchase a wireless mouse in order to use the right button on the mouse becasue the mac treats it as if it were a normal mouse. Thanks!
The thing is, I can't get the pie menu to even come up! I've tried all of the keys and it never shows :/ I've read the attactment that explains all of the keys and it doesn't work.
Is it just me, or can no one else create a wall, pillars, stairs, etc. I can only build the floor with the hammer. And I'm on a Mac (if that helps) I have read the READ ME attactment but that control doesn't work either.