Limiting Conversation Participants Amount

[Michael]

Is there any way in XenForo to limit the amount of conversation participants? If its unlimited it would seem like they could easily spam everyone on the forum via PC, any ideas on how to do this or if there is a limit already in place? I would really like to limit these to three or four people at a time maximum.

Cheers.

 

[Paul B]

It's a user group / user permission setting - Maximum conversation recipients