Sure. Random example, I have one of two copyright statements at the start of my captions, which alternates depending on where the images are being sent.
At an event I'll be sending selected images to different destinations which each requires a different copyright statement.
So I switch find/replace presets back and forth between two different copyright statements.
But I've got lots of find/replace options in a numbered list and switching between different ones is a case of selecting the preset link, scrolling through and finding them, then repeating this when replacing the other way a few minutes later.
A button that just inverted the two would speed this up for me.