Improvement: TTS voice message on vertical ascent/descent speed (meters/hour).

[ut]

When running I use  Text To Speech -periodic alerts - message to speech - average speed in movement
and I get information about my speed in the last km.

Walking in mountains it could be nice to get another voice message about ascending/descending vertical speed (m/h).
It could be instantaneous or average (last x minutes or y meters ascended/descended)