Click on “Settings” in the platform sidebar and then click on the “Membership Types” tab
Find the relevant membership and click on the
icon to edit it
Under “Unique Features”, enable the following option: “Book upon free space”
This will switch the feature and allow you to write in how many registrations are permitted beyond the normal limit (based on free space within the class) as well as how many days / weeks / months before the class a member can register