Display Intersections with 3D Objects
Default UI Menu: View/Display/UCS/Show 3D Intersections
Ribbon UI Menu:
Enables you to visualize where the current workplane intersects with 3D objects. This is a toggle command; if selected, the interactions will always be displayed whenever the workplane is displayed.
Note: You can snap to points along intersection lines and curves.
Workplane without interactions
Workplane with interactions