How do I change the exercises on Sense?

[C62013]

I do water aerobics 3 times a week.  I would like to add this exercise to my Fitbit Sense.  I ride a stationery bike 3 times a week.  I would like to add this to my Fitbit Sense.  
I am using swim for water aerobics and changing it later in the app.  For stationery bike I use spinning and change to stationery in the app.  There are many exercises in the Sense that I will never use and want to add these two instead.  How do I remove and add exercises to the Sense device?

Moderator Edit: Clarified subject

[N8teGee · Accepted solution]

Hi @C62013.

Unlike older watches, as far as I know the Sense has all of the workout shortcuts already pre loaded. So what you see on the watch are all of the workouts that are available, there's no way to add any more to the watch.