Can you sync between computers and this NAS?

I just got the WD My World NAS and I am no expert at all.

Can you use this NAS to sync files between computers? I want the files from each laptop to sync with the NAS so that the files on each laptop are the same. Is this possible, or did I just waste my money on this?

Here you go friend read up

and specifical;ly what page is this info on? I have read it from top to bottom and see nothing on setting up syncronization between computer and NAS