Thanks very much for this info! I was able to move the thumb keyboard "spacebar" to the lower right corner. Now the letters are correctly aligned like on a real keyboard. I always had so much trouble with the bottom row letters (z,x,c,v,b,n,m). I also added asterisk, pipe, and backslash to the ".,-" key. No more need to switch tabs for star!

I'm surprised it was so easy to do. Thanks again for the useful information. It makes me think we need a central location for users to post their customized keyboards.