It is now very well.
I can write the path to another program?
Just replace notepad.exe with the full path to the other editor, make sure to escape the back-slashes, so that a single back-slash (\) ends up as double back-slash (\\).
Thank you for your help. Everything works.
If this is output to listing window, then there is no default, but I have created an enhancement request.
Ask GTAC to add you to ER#1906259 - No Customer Defaults or Preference for Activate or De-Activate "Display Output"