Not all eWelink devices imported

Hi
I’m new to HA but so far successfully fumbling my way through. I have approx 50 eWelink devices mainly switches. When I added the eWelink addon via superviser, it added some of my switches but not all. How can I get all my switches added.

I checked in my eWelink app and 1 of the switches missing has the same current version as 1 of the switches that appeared in HA. Why would some appear but not others? Is there a limit? What can I check to get the rest of my devices added?

You’d better install SonoffLan

Thanks - I’ll give it a go.

Thanks - that was easier and better than I thought