The list endpoint allows for retrieving multiple pathways and user enrolments. This is useful if you wish to track the enrolment status & progression of users.
The manage endpoint allows for managing multiple users in a single pathway. This is useful for bulk user add (enroll) / remove (disenroll) actions to a pathway.
The insert endpoint allows for adding a single user to multiple pathways. This is similar to the add parameter for the manage endpoint but allows for multiple pathway assignments.
The remove endpoint allows for removing a single user from multiple pathways. This is similar to the remove parameter for the manage endpoint but allows for multiple pathway removals.