How to enable Connection Alerts when in Access Point mode? It's not in the Deco App. So https://www.tp-link.com/nl/support/faq/3022/ shows to press "Connection Alerts", but this is missing in the App

I want to setup my Deco M4 in a way that it creates 2 (or 3) private and seperate networks. Can I establish this by connecting each Deco unit in router mode directly to the central modem/router? Shoul

M5 supports VLAN-Id for the guest network. I can't see such an option for M4 and need it for guest network. Did I miss something? Will it be available for M4?