Yes it is possible. Just set up the same software and configuration on two or three Mac/PCs and then put all the assets of a project on a local or remote server (I use DropBox so it is also available remotely).
I use this technique to upload heavy folios containing dozens of articles.
Mac 1 uploads articles from 1 to 30
Mac 2 uploads articles from 31 to 70
Mac 3 (which could be in an external location) uploads articles from 71 to 110
All three use the same Adobe ID so everything goes in the same folio.
Result: I divided the uploading time by 3.
Remember: the Folio Builder panel is only a window that shows you what happens on the Folio Producer server at Adobe's. There is no folio stored locally on a machine unless you specified it.
