I have already sync my file in computer to WD SMARTWARE.SWSTOR last year. now i want to move another file inside harddrive containing the WDSMARTWARE.SWSTOR directly to the existing WD SMARTWARE.SWSTOR folder by copy paste. can i do this? or is there a more appropriate 

Hi and welcome to the WD community.

What would you like to do with the folder or the files within the folder. Could you let us know what you are trying to do so we can better assist you?