Player commands in coop (by pressing v)

Is there a way to add own commands to that menu that comes up by pressing v ?
I noticed it will not work in coop...

The voice message menu is hardcoded, so I think the only way to play with it is using the dmmessage event (from NightFall patch) Ryback told you about in the other post
That way you can detect via script when a player sends a voice message (the asterisk and numbers) e.g.: "*11" = "Squad, move in!" | "*31" = "Yes Sir!" and so on.

Thanks