How do I create a collection in Infuse MacOS? When I select titles the option is greyed out

I’m on the latest Mac Monterey update and latest 7.4.2 Infuse update.

Also, why do I have to recreate my collections in Infuse? Can it not replicate what I have on Plex like it does for Movies? I have to recreate all the collections for my TV shows again.

Movie collections can be created in Plex, and they will appear in Infuse.

Support for other collection types from Plex is planed for an upcoming version and you can follow this thread for updates.