1. On your homepage, click 'edit my subjects'.
Alternatively, click your profile icon and open 'Account settings'.
2. Click 'Edit' beside your subjects.
A window will open, allowing you to select/deselect your subjects.
If you're a student, you can select between HL, OL and FL, where relevant, and also change your year.
3. Hit 'save changes' to update your subjects.
You can only change your subjects 5 times. Changing between HL and OL does not affect this.