Installation of my connected product

• Which is the automation addresses limit for MyHome installation?
• Can I configure more than one house with the HOME+PROJECT application?
• Is it possible to create group and general commands in Home + Project?
• Can I connect my Classe 300 EOS to the data network with a cable?
• Can I replace a pre-existing BTicino 2 wires internal unit?
• Is Classe 300EOS with Netatmo compatible with other BTicino old wiring technologies?
• Is the Classe 300 EOS video door phone compatible with other Bticino 2-wire products?