Not both...
On a day when I want to know, I have a box set to 'average speed' and I then make any proper stop a complete separate lap, so I have a record via the lap page of the entire time stopped at controls, and then I can then peruse my laps and deduct the time stopped, and recalculate for a rough moving speed.....
Or have my 800 running on a different setting as well, which is NOT going to happen....