Additional IP for remote admin

Hi,

I manage to connect to my FZ server remotely. I need to add some more users to be able to connect to my server.

Presumably, I will just add their IP on the allowed IP box but when I did, the other IP failed to connect.

I added the IP on another line but I noticed that when I came back to view the settings, it become one line only.

How should I separate multiple IP on the allowed list?

Thanks