I am building a website for a school and I am using Groups plugin. Each group is a lesson, so I can add a student to multiple lessons-groups (the lessons that the user has passed). The question is how I can add more information regarding the group that the user belongs? For example I would like to display the date that the user passed the lesson.
One idea is to create a custom post (ACF plugin) "Student" where I can add the details I want to store, but how I can integrate the ACF plugin with the groups plugin in order to assign student to a group from the custom post.