What can trainers do with circuits?

1. Can create a circuit and add them to workouts
2. Can edit the order of circuit
3. Can edit the variables within a circuit
4. Can choose which exercises make up the circuit
5. Will see the estimated time completion for the circuit based on the number of exercises and rounds within a circuit
6. Will have the total workout completion time based on circuits, supersets, and the total number of exercises within the workout