How do I add limit the number of students who can enroll in a course in Master Study LMS plugin WordPress?

The criteria is when a teacher creates a course she can add an enrollment limit for example 25 enrollments. This means after the 25th person purchases the course no one else can join until there are slots opened back up. The plug-in has a feature called manage students that displays how many students are enrolled. If this new field I am asking for and that is assigned to the course has a value equal to or less than the enrolled students count then allow more students to join. The purchase button on the listing will be enabled. However, if the number is higher the purchase button becomes disabled and a message shows courses are full.

Unfortunately Master STUDY LMS does not have this feature. I would love to hear from you and your help and suggestions would be Appreciated.

Thanks.