Invite player from chat w/o typing his name

[gm9]

How can you right click them if they are not in your zone?

Anyway on some peeps I got the long window and on some I did not. Those that had the long where in zone, the other's weren't. Maybe there were other factors at play that decided on which menu we get, I just pointed to the one I saw while quickly checking this before heading off to work, and it seemed consistent. I clicked on the names in the chat window.