No, I don't think you can create it this way.

It is kind of confusing about one-way synchronization. For example, if you sync Server to Client only. So it is a one way synchronization:

   Server  --> Client

Now assume the two folders are sync-ed; and if you only make changes to the Server folder, then it should work just fine. However, if you change a file in the Client folder, the next synchronization will overwrite the changes made to the Client file.

Please be careful about Synchronization, as it could accidentally over-write or delete your files.