can I terminate paused streams in the now playing screen?

Like the question says, can I terminate paused streams in the now playing screen? I have Roku users who just change away from Roku as an input and leave Plex open/paused. I can do any updates, as my scripts detect the open session. Is there a way, short of a plex server reboot to kill these sessions?

I think that would be a great feature to add. As far as I know it is currently not possible.