Foreshortening a radius dimension on a drawing is easy. The option to foreshorten a radius is found when the radius dimension is highlighted by looking under the heading of Display Options in the PropertiesManager pane. (Note: this foreshortening option will not be available if dimensioning a full diameter within the view current view, even if the dimension is shown as a radius.)   Once this option is chosen, the radius dimension will appear foreshortened with a zigzag radial line. The user can then adjust the shape and location of the zigzags, as desired.
This is easy enough. I am covering this basic how-to tip as a lead-in for the more complicated task of foreshortening diameter dimension in an upcoming article.