Files entries in activity streams

Hi,
if somebody loads up a file for a special user/user group / related user  a connection of the user has an entry in his activity with a message "soemthing went wrong". What I want is that just the user , the user group or the related users will get a message that there is a new file for them.

If the file is for a user group  or a relation type  or a special user everybody of these should get a message that there is a new file, but there shouldn'nt be an entry in activity streams of their connections. How can I handle this?

Best regards Uwe

If I understand correctly you don't want file uploads in CB Gallery to create activity entries? So you want photos to continue to create activity entries? Currently it's not possible to limit this to specific types and can only turn the activity on/off entirely.