Adding a note to a workout schedule can be done in several ways. If you want the note to show in the printed version of the schedule, you need to add the note in the workout editor. Click on the exercise and add the note in the bottom right of the screen. This will be added to the printed schedule, underneath the exercise.
If you want the note to only show in the activity calendar, you can add it in the activity calendar of the specific client. Click on the exercise and you can add the note under "details". The client will be able to see the note if he opens up the exercise as well.
Please note: clients can also use the note section in the activity calendar to let their trainer know how the exercise went. In this sense, the activity calendar allows you to communicate with your client from both ways.
tags: exercise, plan editor, training plan, note, submission, client