Question about Garmin Venu 2

Just had a look. There are apps on ConnectIQ.
'Pacing' and others.
But I haven't tried them.
Greetings, Martin

The automatically generated response told me that it was covered by the abnormal heart rate function.
To my knowledge, however, this only works if you have been at rest for at least 10 minutes.

I want this alarm when I am in motion!

In order not to exceed my energy limit which is very decimated by Long Covid.