1) Start by navigating to the subjects screen from the main menu
2) Select the semester you wish to change
Add a Subject
Tap on the '+' button at the bottom right. To edit your new subject, follow this guide.
Remove a Subject
1) Tap the "edit" button in the toolbar
2) Tap on the trash icon next to the subject you wish to delete
3) Tap the "done" button in the toolbar when you are finished