Tnx !!!
Now it works

I also tried to interact with the physical controls and an app that talks directly with the gateway.
It works
I only see a few problems with the update status of devices
For example: if I turn off a light with the wall control (physical) in domoticz not always updating ...

cache cleared
password field appeared but i had this error in log

"no password set for a unofficial bticino gateway"

as the password is missing ....

beta version .6461

tested on:
bticino LN4890
bticino F425V

Perhaps you are interested in the new update of this code:

I added the authentication algorithm for gateways unofficial (eg MH202 or LN4890).
So now in the hardware page, simply set the password and it work :)

The next step is the dimmer of lights. Now I see how to do, I will follow the advice of ...