Obtaining Images from Slices

[Michael]

I'm new to Glue, sorry if this is a trivial question.  

I have made some slices from a data cube, i.e. a PV-plot.  I can't work out how to save these images other than a screen grab?  There doesn't seem to be a "save plot to file" button, unlike when viewing a 2D image.

Can you tell me how to obtain the PV images for my slice?

Thank-you.