Well, Mr. Brett, you have been a big help once again.
Actually, I did look at the default screen but only looked at the "feedrate" DRO. I read it and it showed OEM Code 818. So, instead of using the screen code for feedrate I placed OEM Code 818 onto that button. When that didn't work I decided to post here to see what I missed. After reading your reply I went back to the default screen and saw that the correct DRO was called "FRO" or feed rate override. Once I looked at that OEM Code I saw that it was Code 55. After trying that, the cure was found. So, thanks again for your helpful insight.
LEW