How do I move image files from my aperture library to an external hard drive?
I want to free up space on my MacBook Pro by moving most of my image files to a new external hard drive. I want to manage these image files with Aperture as referenced files. I've read much about importing from external drives, leaving the original image file on the external drive, and managing as a managed reference file. But but I haven't seen anything in the literature yet that tells me how to free up space on my laptop's drive.
MacBook Pro, Mac OS X (10.7.5)