You can specify who will be able to edit which language versions of documents. This setting can be done separately for each user. If you go to Site Manager -> Administration -> Users, choose to Edit () a particular user and switch to the Languages tab, you have the following two options:

 

•User can edit all languages - if selected, the currently edited user can edit documents in all language versions of all sites in the system

•User can edit following languages - if selected, you can specify which language versions can be edited by the user by checking the check-boxes in the list of language versions; this can be set separately for each site in the system using the Select site drop-down list