How to create a workout with say 3 sets and 10 reps on each set as well as resting inbetween

I'm trying to create a custom workout activity for the Gym on my Garmin Fenix 6. 

What I would like to accomplish is this:

For each excercise have say 3 sets with 10 reps of the Romanian Deadlift for example.

After each set I want a rest-step of maybe 30-60 seconds before beginning the next set.

Then the next excercise with similar config, then the next etc.

So do I have to basically create a workout like this with 6 steps for each excercise or is there an easier way.?:

Romanian Deadlift step - 10 reps

Rest step

Romanian Deadlift step - 10 reps

Rest step

Romanian Deadlift step - 10 reps

Rest step