This feature is now available. I have no idea when it was implemented, but it was there today when I needed it!
In Garmin Connect (web), click the settings (gear) icon, then Trim Activity. It's supposedly…
The trim activity function definitely helps. It should be noted that when trimming, the values you put in the time fields are what you want to keep, not what you want to remove.
I can't find the trim functionality. Is it still there for others?
I can't find the trim functionality. Is it still there for others?
Yes, it is: Activity screen » cogwheel for Settings » Trim Activity
It is not availlable for 'Rowing'
It is not availlable for 'Rowing'
You can try changing its activity type to Running, trimming as needed, and then changing back to Rowing.
Thanks for the headup, but I don't see the menu choice Trim Activity. Is it still there for you?
I don't see the menu choice Trim Activity. Is it still there for you
Yes, it is still there, though not for every activity type. As written in my previous post, if you need to trim an Activity of a type that does not offer the trimming, change its type temporaily to Running, trim, and then set the type back to the original one.