Hello,
To work with off line maps and files, you have to define it on the windows client computer.
In the windows explorer , in de top tab bar select extra > offline files , and activate it .
On the maps itself activate de selection working with off line files.
It is not that difficult , follow the instructions in de several menu's.
Every time the client computer is connected with the netwerk, there is automaticly a synchronisation with the local files on your laptop and the files on the server.
Nothing has to be set on the Zentyal file server, all the definitions must be executed on the Windows client.
Best regards,
Ian