Link files from external directory

Hi,

We have DOCman 3.5.3 and we need to list directory and files into DocMan from external docman directory.

Into https://www.OURWEBSITE.it/download we have all DocMan directory and files stored in "joomlatools-files/docman-files/"

We need to add into https://www.OURWEBSITE.it/download/file-trasparenza the directory and files stored in "/sites/default/images/file_allegati_trasparenza"

It is possible without manually upload into DocMan?

Thanks, Best Regards