Synchronize Options Dialog Box
Click the [More Options] button to access theSynchronization Options dialog box:
Include Subdirectories
Select this option to do recursive synchronization to all subfolders.
Synchronize empty folders
Select this option to have folders without files or subfolders to be synchronized to the destination folder
If only one object is compared, compare case-insensitively
Remote folders may contain files which are different in their capitalization (ABC.text, abc.text). If this type of duplicate file does not exist in the destination folder, turning this option on determines that the local and target files have the same name (AbC.text = abc.text.).
Comparing by Modified Time
Files with the same name are compared by time of file modification.
Comparison by File Size
Files with the same name are compared by file size.