Hi guys … 
i don’t think that this simple function is present in the Folder Actions … 
Sometimes i have a folder with some subtools and i need to duplicate the folder and mirror one by one a single subtools … 
This is ZMirrorFolder.

With this simple script i can mirror all subtools of the specific folder. 
You can download this plugin here:
http://www.netkingz.com/en/2019/06/25/zmirrorfolder/