Hi Henri,
Thanks for reaching out! If you’re looking to change the URLs for events that are listed on your full calendar views (such as the default Month View), this isn’t possible short of modifying our plugin code. Our calendars are designed to redirect to the single events that are generated with our custom post type. However, you always have the option of linking these single events to an internal page on your site. Simply enter the URL of your choice in the Website field when creating your event, and your users will be able to click through to the desired page for more information. 🙂
I hope that helps to answer your question here! Thanks again, and let us know if you should have any other questions!