[Geoff Bacon]

Can't you just use the "Edit Song" function to set the desired page order (then crop as required)?
e.g Songs, Long press on required song, "Edit Song" in top menu bar

Geoff

edit: Just tried using the snippet tool (for the first time) on a 2 page pdf.
It says a single page in the file (I think this refers to # pages in snippet rather than in source file)
Click on page order and set the keyboard to "Full"
You should then be able to enter commas e.g. 1,2,1,2,3

This may not help you if the repetition crosses pages!