Mike,

I was surprised to read your post as thats exactly what I had done ! Except for the conversion of the digits to string and back to int, rest all are the same.

Enter the edit sequence by a combined press of Shift + Inc .
Shift to right by one digit with each Shift and wrap over to left after the 4th digit.
I am using sprintf() for displaying the digit.
Inc the selected digit by one way scroll 0->9 and roll over.
Third push button is "Enter" which loads the next parameter to edit in sequence and when all are over, saves the value to flash and returns to run mode.

I now only have a problem with the save to flash ( a separate thread appears for this ) of the user edited Int and once that is done, the code will be complete.

Thanks

Raghu