re; page split functions: Today I was doing some fast and furious keyboard work using shortcuts and later realized that I had accidentally chopped 3 of my chapters off at the word where I was trying to set the index marker.
The culprit was my pressing return with the shift key still pressed down from the previous keyboard command.
I then went to prefs and removed the default "split page" commands so that I wouldn't keep doing this accidentally. I think, just as a safety precaution, that those commands might be better located away from the "busy" zone or perhaps left blank in favor of keeping them just as icons on the interface.
May sound trivial, but not when it happened to me on several occasions today.