Well, Katherine, since you asked, 
, it’s all due to the the lowly page up/page down keys.
I haven’t owned a mouse since the early 90’s, after a brush with carpal tunnel issues. In Windows now I can get around as needed 70-80% using keyboard shortcuts, and the remainder with the touchpad, when I’m using my laptop’s keyboard. Frequently, though, I put my Lenovo in stand mode and for the most part can navigate using a lovely mechanical keyboard, occasionally having to tap the touch screen…But no reaching for a mouse.
(I’ve read complaints on the forum that the beta is not touchscreen friendly, but I find it works well enough for my needs.)
I realize that I’m an outlier in my non-mousiness, but Scrivener supports me almost perfectly in this regard. Nearly everything I need is accessible via the keyboard. Ctrl-shift B, Ctrl-tab,shift arrow down down down, Ctrl-tab, Ctrl-1, page up/page down–
Page up/page down in Scrivenings mode. This is where things fall apart. In every other Windows program I’ve ever used, in decades of Windows programs, page up/page down moves whatever’s on your screen a full screen up or a full screen down. Except Scrivenings mode. In.Windows Scrivener Scrivenings mode, page up/page down moves you to the top or bottom of the current Scrivenings document.
That won’t work for me. I’ve never heard anyone else complain about this, so it must not be an issue for all the Win Scriv mousers out there, who are perhaps using scroll wheels to navigate Scrivenings, but it won’t work for me. I can’t overcome decades of muscle memory to remember not to use Page up/page down in Scrivenings mode. The times I’ve forced myself to try it–and I’ve forced myself many times since purchasing Scrivener in 2014–I inevitably wind up reflexively paging up or down but it’s not a screen’s worth it’s the entire document and who knows where I’ve ended up now and my flow is gone.
So I can’t use Scrivenings mode. And if I can’t use Scrivenings mode, that encourages me to keep my notes in larger documents, because I like being able to page up/page down rapidly through my material and see everything flow past. Moving up and down through binder documents isn’t the same, because I only get a screen’s worth of the document, and to see the rest of the document I’d need to move focus from the binder to the document and then Page up/page down. Again, interrupting flow.
And since my notes are in larger documents, linking to documents isn’t very useful, as the documents are not granular enough. Hence my desire for the ability to link to text intra-document.
I’d love to keep my material in smaller, focused documents, and then use Scrivenings mode to stitch them all together and flow through them seamlessly, and leverage document links to point one to another.
But I can’t, due to page up/page down.
(I bet your now sorry you asked )
Best,
Jim