an option associated with the FAHViewer button that allows the user to select an active WU/slot to provide real-time images.

[shorttack]

Transferred from #31
See original request #31 : "There needs to be an option associated with the FAHViewer button that allows the user to select an active WU/slot to provide real-time images." My functional interpretation of the proposed enhancement is "add a button (or right-click) to invoke FAHviewer for the selected slot."