This is the technique that saves the most time in PlanbookEdu, and it isn't a separate feature — a template is just a repeating entry you write once.
The idea: fill the week with the parts of your schedule that never change — subject names, times, standing activities — and set them to repeat. Then each week you only write what's actually different.
1. Write the skeleton
Go to the first week of your planbook and click edit on a box. Put in the information that's true every time that block runs: the subject, the time, a standing warm-up, the headings you always use.
There are no fixed fields for these. Use the formatting tools to lay the box out how your school expects — bold headings, a bulleted list, a background colour per subject. See Formatting text in a plan.
2. Set it to repeat
In the same editor, change This entry should appear from once:
- daily for something in that period every day, then choose this week, this week and forward, or for all weeks
- the cycle option — labeled weekly in a normal planbook, or named after your rotation — then choose going forward or for all weeks

Save, and the template fills the rest of the year.
Repeat for each block you want templated. It's a session's work once, and the year is framed.
3. Add each week's detail
Now the important part: adding this week's specifics without overwriting the template everywhere.
Double-click the box to quick edit it. Anything you save there applies to that box alone and leaves the template intact for every other week.
That's the whole workflow — template underneath, one-time details on top.
Quick edit converts that occurrence to a one-time entry. That's exactly what you want here, and it's why quick edit is the right tool for weekly detail rather than the full editor.
Changing the template mid-year
Schedules change at semester. Edit the box, adjust it, and set the recurrence to the cycle option going forward. Everything before that date keeps the old template; everything after gets the new one.