For the basic instructions on how to assign a template look here.
When you make changes to a micro template, e.g. add another workout to it, after it has already been assigned to the calendar of an athlete, Trayn allows you to sync these changes.
When you open the assignment screen for a modified micro template, you'll notice that existing assignments will have a dotted border. Additionally a gear-icon appears, which—when clicked—will reveal a menu with an option to Update Assigned Sessions.
After selecting this menu entry, workouts in the calendar of the athlete will be updated with their newer versions.
If events in the calendar have been modified, e.g. moved or deleted, a dialog will open and ask how to proceed. The options are:
Overwrite changes to individualized sessions in athlete's calendar with current contents from template. This will remove all workouts, that are stemming from the template, and place new workouts with the updated content into the calendar. Tracked workouts will not be removed.
Keep sessions from this template in athlete's calendar and remove link to this template. This will keep the workouts as they are in the calendar and additionally add new workouts with the update content of the template.