That is not much of an issue. We hardly use the gate remotes anymore since I connected the sonoff to it.Yes and two more lights. A dual will also work or 4 basics.
I would seriously not remove the existing light switches though. It sucks to find, take out, unlock your phone, find the app, wait for it to load and tap the switch compared to a normal light switch. I am rather using sonoff minis with pulled down neutrals.
