I'm using WpForo 1.7.1 with the Addon "Private Messages".
I want to prevent that an user of the usergroup "registered" can send a message with attachement. In contrast, Users of the group "Admin" should be allowed to send attachements.
In the group settings of WpForo I can online uncheck "Can access to attachments". But how can I hide the "Upload Attachement"-Option in the email form?
I'm sorry but we don't have such a feature to allow attach file depend on the usergroups yet.
However, we've just added it on our to-do list and try to implement it in the near future releases.