Hide additional keys when keyboard attached

This is a repeat of an issue reported fixed two years ago. Apparently, it's back. I just attached my Logitech Ultrathin keyboard, and I see the row of extra keys on the screen at the bottom. Unfortunately, this moves from being an annoyance to a bigger issue, if I display the navigation wheel and try to move the cursor with it. The reason is that there's no way to access the "down arrow" from the navigation wheel. An alternative way to handle this would be to allow the nav wheel to be moved around the screen (and away from the row of keys).