[Geoff Bacon]

I would think that your best bet is to edit the page order so that you don't have any backward jumps e.g.
Edit song
Files
Page order: 1-2 change to 1,2,1,2   (2 pages going to 4 pages)

Then display the song and crop the individual pages as required (or white out areas you don't require).

As you have a pedal, you can use that to change pages forward.
Alternatively, you could use it to start/stop scroll

Another option is that you use link points and set the pedal to jump to next link point (you wouldn't need to duplicate pages doing this)

Suggest you try each of these appraoches and decide which is easiest/best for you .

Geoff