is there a way to modify step count

my watch didn't track my steps during a water aerobics workout. I was wondering if there is a way to modify the step count. I've been working on a streak, and it was broken because of this

0 Garmin - AL 20 days ago

Your forerunner 570 tracks steps with the swing of your arm using an internal accelerometer. Some activities cause a lack of arm movement which can result in a low step count or missing steps. When performing water aerobics activities the arm does not swing the same as it would when you are walking or running.