OK I did a little poking around and found a way to get Decoder Pro to use a LocoNet Simulator which allowed the buttons to appear.
See Attached:
On the screen shot with all the roster entries you can see, in the lower right, the 3 modes in can work in:
- Programming Track
- Programming on Main
- Edit Only
If memory serves me "Programming on Main" is the correct mode.
On screen shot of the WatchMan CV page you can see the Confirm buttons.
So you would set the values on the various other pages, Save them, which should save them in the decoder file, and then Write them, which should update the values in the WatchMan.
Then you would switch to the CV page and "Compare Full Sheet" and look for any issues, values the differ between the file and the device.