I tapped a grade template by mistake: how do I go back?

Three ways, during setup (Grades step) as on the Grade system screen:

1. Right away: tap Undo in the "Grade system created" message at the bottom of the screen (about 7 seconds). The system goes back to the trash and the list of templates reappears.
2. For another template: tap Change template, right under the system's name, then pick the right one (possible while no grade has been awarded).
3. For no system at all: tap Remove the system, right under the system's name, then confirm. During setup, the "No grade system" choice is then selected.

The removed system stays 30 days in the trash. Back goes to the previous step without undoing anything: the created system stays in place.