Samsung Health - How can I retroactively add an activity?

[thomasbihn]

I'm sitting at the computer with Activity Other waiting for it to say I've been performing it for 45 minutes. I had a 45 minute workout earlier today but can't for the life of me see where I can go in and add it in the app or on the Gear S3.

Is it possible or is it just you don't get to log it if you forget?

I was doing deadlifts, calf raises, etc. and it couldn't read my heart rate while doing it so shows no activity during that time.