I'm probably getting the wrong end of the stick here but I'm a Garmin noob!
I did a little weights session yesterday and it seems to have auto-detected what I was doing wrong and assigned the entire session time to this incorrectly detected exercise.
I just tapped the top button (A), selected weights and hit start.
How can I tell it what I'm actually doing, rather than what it thinks I'm doing? I saw there is an edit exercises button but that just has a remove button on the item with all the time assigned to it. What happens if I remove that "line item", can the time be reassigned?