Stairs Activity not stair stepper

I am wondering why there is no stair activity in Gramin Connect.  Stairs are NOT the same as a stair stepper.  My workout routine is 235 flights of stairs for a total gain of 2000'.

This elevation gain should count towards challenges.  IO would also think the calcuation of calories burned would be different than a stepper.  

If I go to create a workout of course stairs is not an option, I dont think there is a workout where you can enter elevation gain but maybe I am wrong.  

I am using stair stepper as my active but is there a better way?