You'll have to edit the pb file in /home/youruseraccount/.rox_choices/rox-filer. If you study it a bit, you can edit it to display an icon for your mount point(s). This is what I have done with enlightenment as well. I don't know how to make the pinboard start with enlightenment but from some of the documentation I've read, you might need the rox-session package. Personally, I just make an entry in the menu for the pinboard, both on and off to give me control at will with a click.

HTH,

Durand

P.S. Do the moderators allow posting of jpgs to display screenshots if it was to show how things look?