General wiring for wall switch

    Hi all,

    Can someone please help me out with a wiring diagrams for the following scenarios?

    1. I have a vent in the bathroom and I would like to have the option to switch in on/off with a wall switch, but I would also want to automate it for different cases. How do I wire it with the Shelly so the smart automation would work even if the switch is in off state?
    2. I have gas boiler in the basement which heats up my floor heating. The floor heating has 2 circuits. I would like to have my smart home system switch it on/off with the help of shellys. How would I wire up the 1 circle with the 1 shelly?

    I have an electrician but he is quite old-school and have never seen a relay like shelly before, so he wants to see a diagram, how shellys work.

    Thank you all in advance <3

    Tom