Alert Tones off During Strength Training

I am currently creating strength workouts to use on my FR965 in the gym. During today's workout the watch was making alert tones before the end of each rest period/set. I've looked in the activity specific settings but there is no way to disable tones for a specific activity (in the case Strength Training). 

The problem with disabling "During Activity" from the main settings is that I still wants them when I run/bike/hike etc.

Is there any way I can disable tones (and ideally keep vibe) for specific activities?

Much appreciated.