Murphy,
The keyboard jogging image is either visible or not. As long as you using keyboard jogging method.
As Al mentioned you can make up buttons on the screen that you click in or touch on but if that's not an option, there is always a cheap $25 joystick that uses a standard USB port.
No wiring, just plug it in. But before you think of this you would have to remove all the other logic that operates the 11 buttons in the Joystick.FIL file or re-assign their meanings, so they don't conflict with what you've already done.
The screen you showed one of the others here looks pretty good with enough room for the jog box.
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