Deleting cross-section while entering it

If you have deleted a region of a cross-section by entering another cross-section, you can restore the original state by adding the same cross-section. You can use the shortcut menu; the point clicked is automatically used as the reference point.

If you want to discard an entire cross-section, you can add a new cross-section which covers the original cross-section in its entirety or you can remove a rectangular cross-section which covers the existing cross-section in its entirety by selecting the Delete option.

Deleting cross-section after having entered it

To delete an entire cross-section, you can use Delete All Corner Points. However, partial cross-sections you have added later are not deleted. These can be removed using Delete Addition to Cross-Section.