Choose a class in the class filter to the top left and go to the Elever (Students) tab.

Go to Inställningar (Settings) and click Dela klass (Share class).

Here you will find a list of the teachers working at your school.

Choose which teacher/teachers to share the class with by clicking on their name, and click Spara (Save).

You can also share a class by going to the Klasser (Classes) tab, clicking the three dots in the top right of the class, and then Dela med lärare (Share with teachers).