Interesting idea, if I have quessed correctly, this is similar to your previous post of allowing multiple text boxes on one screen, ie you are on your way to GUI whether you know it or not. 
I intend to study that last post and this to confirm my guess. I mean you woke up Keybone!!! My God man!!! 
more, re GUI: Buttons are a dime a dozen but the Holy Grail of GUI are List Boxes and Text Boxes.
I intend to study that last post and this to confirm my guess. I mean you woke up Keybone!!! My God man!!! more, re GUI: Buttons are a dime a dozen but the Holy Grail of GUI are List Boxes and Text Boxes.
b = b + ...