How do I move image files from my aperture library to an external hard drive?

Question

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.

Answer 1

The screen shot got messed up so its hard to tell what part you're asking about. But if you're asking about this part of the window:
That's were you setup the folders that the originals will go into and how you want the originals to be named (if you want to change the way they are named)
The Subfolder format box defines how the subfolders will be named. IN the image above the subfolders will be named by the image date. A folder for the year, a folder under that for the month and then a folder under that for the day. Then finally the original files.
The name format sets how the originals are named. In the case above they would be named by the version name followed by a sequence number.
regards