Committing to Multiple Locations
Although Subversion does not support committing to multiple locations at once, Syncro SVN Client offers this functionality regarding external items.
If items to be committed belong to different external definitions than those
            found in the working copy, they are grouped under the corresponding item that indicates
            their
            repository origin. Each parent item is rendered bold and its corresponding repository
            location
            is presented when hovering it. Parent items are decorated with a small arrow (  ) if they are
            external definitions. The working copy root directory is never decorated and is
            not presented if there are no external items listed (all items belong to the main
            working copy). Each child item is presented relative to the parent item.
 ) if they are
            external definitions. The working copy root directory is never decorated and is
            not presented if there are no external items listed (all items belong to the main
            working copy). Each child item is presented relative to the parent item.
            
Note
The sets of items belonging to external definitions from the same repository are committed together, resulting a single revision. So, the number of revisions can be smaller than the number of externals. External definitions are considered from the same repository if they have the same protocol, server address, port, and repository address within the server.
