[sciurius]

It's all about workflow.
I prepare and organise my musical sheets on my computer, transfer them to the tablet and import them into MSP. MSP is then used to create setlists, last-minute annotations and, most important, to display the sheets while playing.
When I get a new piece of music during a rehearsal, I put it on a stand, make annotations with a pencil. Later, when I'm at home at my computer, I scan it and enter it in the collection of sheets and import it into MSP.
So all maintenance is done outside of MSP and the documents are organised the way I want it.
It may seem temptive to ask Mike to implement my workflow (and yours, and more). But that is not what I see the main purpose of MSP. Moreover, my preferred workflow will not be yours, and I'l probably change mine anytime I feel like doing so.