I bought Bryce a little over a month ago and I have done some tinkering here and there.  But I was trying to go over the tutorials and one of the said to remove the ground from the set.  I can not figure out how to do that can somebody please help me.  Also I got some free downloads from here and I am trying to figure out how to put them into my Bryce 6.  If you can help me please remember that I do not know much about computers so please keep it simple.