Thank you Ray for your answer !
Unfortunately, I am not able to modify the firmware, even slightly, to introduce a new command dedicated to enable or disable the enable bit of a program, something that would be usefull for me ! Do you intend to introduce this command in the future ?
For the time being, I will just use the “Change controller variables” (cv), “Operation enable” (en) command as described above.
Many thanks anyway.
Best regards from France,