Hello,

You can transmit a value from another field using context, as in the code below, adapting it to your needs:

<field name="another_partner_id"
       context="{'default_street': street, 'default_street2': street2,
       'default_city': city, 'default_zip': zip, 'default_country_id': country_id}"
       options="{'no_quick_create': True}"/>

Best regards!