Only the Coach who is taking the class has the ability to add notes for all the participants of that class. If you are the Coach of that class, and you wish to add notes for all, click on the relevant class in the Classes Calendar and a pop up page will appear on the Calendar.
If you wish to add notes, click on the Add Notes for All button.
That will take you to the Add Notes for All Class Members page.
Click on the field under the heading Select Template and that will cause a drop-box of template options to appear.
Select the relevant template that you wish to use. Then move to the sections below and complete the notes for all the members. Once you have entered all the information you wish, be sure to scroll to the bottom of the page and click the Save Notes button.