Presently it’s possible for a logged in user to display the individual posts that are on their wishlist. Where that post types has a linked relationship to another post type, it is also possible to display details from those linked posts.

However, what is not currently possible is to display only those posts that are linked to posts on the users wishlist.

e.g. I have a catalogue of COURSES and individual EVENTS when I run those courses.

If a user can add COURSES to their wishlist, I can display those individual COURSES, along with any EVENTS dates where that course will be run.

What I can’t do is simply display the upcoming EVENTS for COURSES that are on the users wishlist.