What I have done is put a blank image button over the DRO and made it a VB button, although I dont think thats needed, its just I have a message in it
Anyway before saving the screen in screen4 go to the Edit menu and choose Bitmaps to back.
Should now work exactly as you want, does for me anyway
Hood
Edit
Just looked at my screenset and I noticed I had removed it but couldnt think why, then I remembered. There is a drawback in that if you click the button over the DRO it takes a snapshot of what is in the DRO then if another value is written to that DRO in the future and you then clcik it the value of the first time shows up. If you update the DRO again its goes back to what it should be. I had this over the X axis on my Lathe screenset and as soon as I jogged the true value would show again but I decided to remove it as it could be dangerous.
Hood