[Steve B.]

You are on the right track already. 
Just put the order of the pages you need in the file/edit tab. You don't need extra snippets. MSP displays all the pages from one file even if you repeat them in the order you specify.
Then you can go to the specific pages and use the crop feature on the parts you don't want to see (rather use the crop rectangle on the parts you want to see). You can also white out the superfluous part
with the MSP tools. 
It's all within the app without the need of other tools and the source file isn't modified by that. HTH.

Exactly.
Order the pages as needed for the song.
Then crop the pages to remove (as much as possible) the part(s) you would skip over when playing through.
Save, and done!
If you find something is not quite right, it's easy to go back and make adjustments...the pages are not really changed, just the portion that is displayed.