Can I set up repeating appointments?

Yes, simply click on repeat to check the field and select the days that you wish the appointment to recur on, as well as the duration that you expect the appointments to continue.

Appointments can only be made to repeat up to one year into the future.

Also editing a single appointment in a repeating appointment series removes that single appointment from the repeating series but leaves the other appointments in the series unaffected. If you want to change something in the whole series, then you have to delete all future appointments for that series and re-create it with the new values.