Can "Chat" plugin be used by various admins on Network?

Hey Guys

I seem to be full of questions today, I apologize. I was wondering if the Chat plugin can be run by multiple admins on multiple sites?

I see that you can indeed activate site by site but I wanted to be clear that this also meant that different admins on different sites could have their own chat session?

If so, I will be using this with Pro Sites as an extra feature. Thanks