Hey @bdakin70,
Thank you for bringing this to our attention as Indoor Rowing is not captured quite the same as Outdoor Rowing.
Unfortunately, there isn’t a way to edit the distance for Rowing activities uploaded from Garmin.
The next best solution I recommend is uploading a manual Indoor Rowing workout and inputting the distance yourself.
Although you won’t be able to capture your Heart Rate & Cadence, you can still use the “Perceived Exertion” to make up for them.
This way you’ll still be able to receive a Relative Effort score.
I hope this helps!