[Winmerge-support] Reverse line order of selected lines ?

[Angahran]

Quick question.

Is (or would it be) possible to reverse the order of lines, either the
entire file or just the selected section ?

e.g.
Line 1
Line 2
Line 3
Line 4

Select all 4 lines and 'reverse' would become
Line 4
Line 3
Line 2
Line 1

or, if just the 2nd and 3rd lines were originally selected, would become
Line 1
Line 3
Line 2
Line 4

I am comparing a large number of text files, and for some reason the
system producing them occasionally reverses the order of parts of them
so winmerge shows huge blocks that are different when they are just
backwards.