[McAroni]

1- I guess you should take a look at the cropping function. Bring up the song overlay, tap the second icon ofthe left and then crop. There you can remove all unnecessary white areas. Then the pages should be closer together.

2- You can create a kind of table of contents with pdf bookmarks.
Bring up the song overlay tap the sixth icon from the right. And then tap the plus.
Alternatively you can work with link points and jump directly to the page, (fifth icon from the right).
See also full manual page 76 and 78
https://zubersoft.com/mobilesheets/manual/