Sync files between folders

I know similar questions to this have been asked before, but I can't find a definitive answer and would be grateful for any advice.

I have a folder containing files in subfolders on my local computer. A copy of these is on my ftp server. Is it possible to get SmartFTP to compare the two folders and only upload files which are not currently or which are newer on the local copy?

Thanks in advance,

Gary