Let user flip a single page
The editor in Memento Pro usefully lets you flip a page layout in
either of 2 directions ("swap page horizontally," "swap page
vertically"), but that operation can only be done to both sides of a
2-page layout.
What if, in a 2-page layout, I like the left page the way it is but
I want to flip horizontally or vertically the right page only. One
example would be to get the mirror-image version of a page
layout. Thank you.