Ted, I am confident there is not. It would be a great enhancement request, and don’t be shy about contacting TP to ask for it!
I suspect that if you were to remove your printout, you’d have your zones memorized post-haste. It’s really just memorizing 4 numbers:
bottom of Zone 2
bottom of Zone X
bottom of Zone 3
bottom of Zone 4
You really don’t need the bottom of Zone 1. If you are jogging or spinning, you’re there. You don’t need Zone y, and since Zone 5 is going to be close to all out and so sort, you really don’t need to memorize that value.