Replace "1" with "-" in display

More SoundProcess project work… We are trying to sort out key splits… The SoundProcess OS allows up to 6 different patches per program. The data comes back as “1” for an unused patch which is obviously confusing as there is a real patch 1 as well. So what I would like is if the key split is unused the display should read “-” instead. But we cannot get that sorted. So the question AI thinks should be asked is: “Can a control conditionally display a different string based on another parameter when its own numeric value has not changed?”

Would be so glad for any input!

The AI somehow tackled it. It was helped by @oldgearguy 's response to the reverse scaling question…