Post-registration
After the 'Studieweb' closes you can make a request for post-registration for entering a course. However, through post-registration a spot is not garuanteed. See Blackboard whether you are placed in a workgroup.
Transfer
If you are enlisted in a workgroup you can ask for a transfer to an other workgroup of the same course. The request can only be approved if there are enough spaces available.
Form for absence first meeting
With this form - which is unfortunately in Dutch - you can announce your absence for the first session of a course. It is not meant for withdrawal the whole course, therefor you can write yourself out via 'Studieweb' until one week beore the lectures start.