If this is already possible and I've just missed how to do it I apologize.
I don't typically work with the navigator panel open, but have been using it recently. What immediately jumped out to me is how off balance it feels when opening the Preview window which has the Info panel on the right hand side.
I think it would be a nice addition to allow the customization of moving the navigator panel to the right side of the contact sheet, this way when you switch between CS and Preview modes the panels overlap and that side of the screen is consistently where you get information.
Let me know what you think.