Foreshortening Dimensions

I have a detail view where I want to put in a foreshortened dimension. However, I can't seem to do that.

Now I've read all the threads on other people's issues with it, but I still haven't been able to do it/

The Solidworks help says that I should be able to do it in ANY drawing view. All I have to do is Right Click on the dimension and select "Foreshorten". Yeah, well, That option isn't there.. It works in the parent view, but not in the Detail view.  VERY rarely have I seen the foreshorten option in general.

Other people have mentioned Ctrl-dragging the dimension over from the parent view. That also doesn't work for me.

To take a step further back, what's the trick to selecting the second dimension edge/ point when it's been cropped out in the detail view? I can select the first edge in the detail view and the second in the parent view, but then I still can't foreshorten it.

I'm running 2018 sp4.

Thanks much,

Joe Tonkin,

SolidworksDrawings And Detailing