If you need to relate many (think 10-50) items to another post, it's very very inefficient. The select input doesn't support multi-select, there's no search, etc. It's terribly tedious. Is there any way to improve efficiency here?
Gotta be honest: Not a fan of this reply at all. It's already clear what is supported. Could you please elaborate on whether MetaBox plans to add better UX by allowing multi-selection similar to the way one would apply multiple taxonomies to a post?