Geometry editor doesn't allow right click

I recently found out that you can hide polygons of a model with the help of the geometry editor. I thought: "Neat now I can remove clipping of body parts". So apparently you should be able to select indiviual polygons and then right click in the viewport to get a 2nd menu with some options, one of those being the function to hide these polygons. For some reason when I select my polygons and then rightclick nothing shows up. I'm on Daz 4.15
Comments
What operating system?
Windows 10
Can you get a right-click menu with any tools, or is this a general failure?
I think this has happened to me a few times. I can't remember if the solution was switching to a different tool and back to geometry editor, or selecting a different item in the scene pane and going back to the original item.