But it’s only shown once you’ve evaluated the cell at least once (just for lack of space in the UI). So there’s a “dead zone”: before you’ve typed anything, you can switch; when you start typing, you can’t; when you run it, you can. So I find myself doing “Cmd-A Cmd-X Right Cmd-V” a lot.
Alt+Right seems to do nothing at the end of line. And it does the same thing as Ctrl+Right (jumps to the next word). Instead it may be bound to invoke a menu for context dependent choices. Like bringing up autocompletion menu which among other things proposes to change the cell type if its current content doesn’t make sense.
Another useful thing could be visible single key shortcuts on such context menu, so one can safely press Alt+Right and m without even spending brain cycles on interacting with the menu.