This does not affect existing users.

Ctrl-Shift-PageUp   Move document left
Ctrl-Shift-PageDown Move document right

The above shortcuts were aliases for selecting left/rightmost
documents, but those are not necessary as Alt-1/Alt-0 does the same.

Alt-PageUp      Move line(s) up
Alt-PageDown    Move line(s) down

Alt is easier to press than Ctrl-Shift, so is better for moving lines
as this needs more accuracy.