Show Cutting PlaneKeyCreator \ View \ Cutting-Plane \ Show-Cutting-Plane
View>Cutting Plane>Show Cutting Plane
Use this function to display the display the plane representation for any current cutting plane. When chosen you will also see the cut representation on the solid. If after selection the cut representation appears but the plane does not most likely the View>Cutting Plane>Show transparent has been implemented (toggle this function and the plane should appear .)To create a cutting plane use View>Cutting Plane.