How to create approval rule for learning event for employee to enroll

Summary:

How to create approval rule for learning event for employee to enroll.I understand i can create for course under learning request and it was working all fine in 26 A,but now we are in 26 B we are trying to use events for instructor led and need approval for employees to enroll in these evnts ,how can i achiev it.I guessed it would pick course approval request rule but no.

26 B

Code Snippet (add any code snippets that support your topic, if applicable):