Hi Mirko,
Currently Alexa cannot recognize renamed zones. You can talk to Netro like:
Ask Netro Home to water all zones for 5 minutes
Ask Netro Home to water zone 1 for 5 minutes
Ask Netro Home to stop watering
IT:
Alexa, chiedi a Netro Home di annaffiare zona 1 per 5 minuti.
Alexa, chiedi a Netro Home di annaffiare tutte le zone per 5 minuti.
Alexa, chiedi a Netro Home di smettere l'annaffiata.
Netro Support