The answer above is correct, however, if it makes you are uncomfortable with cutting, you can
Be careful, if you copy and paste in the same file.
Cross-reference markers will only be pasted, if the marker which
you had copied is actually not present any longer. With Track Text
Edits, the source marker would still exist. Therefore you would
lose your cross-reference markers when pasting. Your cross-references
to this section would become unresolved.