[bazza]

After a bit more random tapping, one of the above problems is solved. It turns out that I'd accidentally touched the 'padlock' icon on the small panel on the library list (lower right) thus enabling 'performance mode' and disabling the 'overlay' - wherein lie all the icons for editing, etc.   So that snag was actually solvable within MSP. 

So  . .  back to the original Q: what's the process for editing out blank pages in a file, using the on-tablet functions?  Can anyone remind me, please?

(Sorry to be a bother, but as apps/programmes became more function-rich and sophisticated, some of us can't keep abreast of al the detail)