Hi. I want to install nordvpn on the deco x60. The x60 is my main router and I've hooked up 3 other decos x20's via LAN. But I can't find the VPN option in the deco app. why can't I see this option? H

There's no wire to my front door to wire directly to the tapo d235. (Old house) I want to connect the doorbell to wires. Is it possible to connect the 2 wires to a power adapter? And what voltage and