...and leave others intact. For example, say I have a folder called Files1, and it has 10 further folders in there. And then I have another folder called Files1 too, which includes updates (new files in) just 3 of the folders. Is it possible to just drag the new Files1 folder over the old one BUT it just copies over the 'duplicate' files and folders? And leave the others untouched? (bit like how it works when FTP'ing files to a server). Default behaviour seems to completely overwrite the folder - which is not what I want. Any ideas?