Can Cut Entities only be played from the media page?

Hi all,

as I am experimenting with the cut entities it seems that the only way to play them is via the Meida page. When selecting “play in screening room” from the cut entity detail page I just get a “no media selectred” error.
Am I missing something or is this just one of those half finished implementations that SG is infamous for by now?

Cheers,
frank