^^^ The bottom can also be set for total feet of ascent or for percent grade, on the 6.0. The top can be set to display either cadence or HR. If you set the top for HR, then you cannot display HR in the bottom, same goes for cadence (in other words, it won't let you duplicate, which cuts down on the scroll time a little if you're going through the bottom screen.)

That said, I shipped my 6.0 back to Blackburn for a refund because it kept crapping out on the display. they sent a new battery, saying they had had trouble with the OEM batteries, but that didn't fix the problem. Also, the altitude display on the 6.0 is wildly optimistic. Not even consistently optimistic, so you can't really get any sort of an idea of what your climbs have been.