improving the touch keyboard

 I would like to see some improvements to the touch keyboard. The touch keyboard - not the on screen keyboard !!!

1. dynamic size - today it's a fixed size and one size never fits all

2. make the top bar hideable. It eats a lot of screen space without any real benefits. It could get a hide/show through an fn button combo

3. Page up/page dn/home/end. those buttons really do make Windows easier to use

4. Add a true full keyboard layout (bonus for hide/show the numerical part)