thx again for your investigation.
I've solved my problem without code changes.
I now know how to add a permission set to a user group.
That's the solution.
Access Control List ( you will find it down below your settings drop down)
- User Groups
- Access policies
- Policy Templates
Access Policies -> define new policy based on the discuss member policy ( here you will find the attachment_read...)
named it Discuss Visitor policy, change back to groups -> update anonymous -> select context -> add new context (see attachement)
I did not know that it is possible to add the same context twice with different access rights.
ok once again, thx
Where have you posted the "social" stuff