OK, so the 7D has 19-focus points, all cross hairs! The only way I found to change the focus point was to press the back button and the turn the front dial to move a point from left to right. And then use the back dial to move up and down. Obviously, this is a bit cumbersome (3 button/dials to move a focus pint). Is there an easier way that I can set up in a setting somewhere? For the record, I don't own a 7D, I am teaching a DSLR course and one of the participants has a 7D.