First Time Configure

I have a Xiaomi R4AV2 router and I want to configure it like this:

  1. There will be 4 different WIFI networks (general, IOT and such), with different IP address at different firewall rules.
  2. I want both LANs to be under IOT.
    That is, if I connect a computer then it will be under the laws of IOT.
    How can this be done?