[Zubersoft]

You can already do that. Long press your song, tap "Edit Song", go to the Files tab, tap the page order field, tap the three dots in the thumbnail after which you want to insert a blank page, and select "Insert Blank Page or Template". The blank page at the top left should be selected, so then you can tap OK (or change the number of blank pages to add at the bottom). Then just tap Save to save the changes.

Mike