Very new to Aperture but using what I believe is called a "referenced library" where my master files are stored in the Pictures folder on my iMac HD, but use Aperture 3 for previews, editing, tagging, etc. I would like to keep a copy of the edited previews (with all the tags, star ratings, etc) on my MBP because I travel a lot and like taking the pictures with me. Would this be a matter of copying the container file in one Pictures folder and pasting it in the other? I realize I would have to do this every time I put the new pictures on my MBP. Any suggestions are greatly appreciated!