Not that this is the solution by any means.... But it could work. I tried to use a SP Picture Library to display the jpg's along with the dwg's on the intranet (in Office 365) Then you use the painful MS way to Map a Network Drive to the Cloud library and deal with the wrath from your users. When they have to log in to see things ever two hours.....or suck it up and buy ZeeDrive. Our issue was the cost of ZeeDrive, just to map a cloud drive. I ended up leaving the items we used iDropper for on a local file share...... if someone finds an idropper app for SharePoint please post!
Andy Hipple
Sr. Network & System Administrator