Stop Tracks Leaving a Playlist Queue

This is my first post, so please forgive me if I have posted this query inappropriately…

I’m using version: 4.3.9.

Can you tell me how to stop tracks leaving the playlist queue once they have been played in Assist Mode. I want to be able to see all the tracks played and un-played together in the queue, with those played being greyed out, but still remaining visible in the queue. And not moved into Played Items in the File Browser until I have manually deleted them.

mAirListConfig -> Playlist -> Playlist 1 -> Options

Uncheck the option about removing played items from the playlist.