This video tutorial will show you how to register to the JMU WueStudy portal. You will not be able to submit an application for admission until you have registered to that portal. Here as PDF-file.
You will not have to register if you already have a JMU student account. Just log in to the WueStudy portal with that account and submit your application.
Detailed information on application and enrollment can be found on Studierendenkanzlei website.