Can I sync automatically my folders/subfolders from Dropbox but define the Access of each folder/subfolder in Joomla?

Hi,

I am a web agency and several of my clients have a Dropfiles licence.
So I know the tool a bit already

My question is the following : for a new project, for the first time I would have to synchronise folders / subfolders from Dropbox.

But some of these folders/subfolders would only be for some User Groups while others would be for specific Users, so independently of the potential access levels defined in Dropbox itself.
Is this how Dropfiles works ?
With other works : do the Access Levels defined in Joomla/Dropfiles have priority over whatever configuration is made in the synchronised Dropbox?

Txs!

Marc