Suggestion: HR zones on emails

I print the email for my daily workout.  It would be great to have the relevant HR zones under the workout.  For example:

 Swim .....

..........

.........

.......

(Z1:100-120, Z2:120-130, ....)

Bike.........

..........

.........

.......

(Z1:110-130, Z2:130-140, ....)