Change playlist items to unplayed

I have saved a playlist after a show for use again in an emergency, however all the items in it are marked as played (I have turned off moving played items to the recycling bin as a personal preference).

Is it possible to select all the items in the playlist and change them to be ready to be played again?

Yes, sure.
Mark / highlight the last item in the playlist, right-click = context menu, then chose “Recycle from here”.

Ahh of course, Sorry!