Hi, I just got a new 4tb external, 2x 2tb. One to offload lots of media and documents. and the other for backup of macbook and the other 2tb drive. I'm going to keep the current projects on my mac and make a new library on the external drive to hold archived projects, documents and media. How can I move a selected number of photos (about 8,000 RAW) to the external HD into a new library called "archived". And keep a "Current" library on my macbook for current projects. I have moved all the archived projects into a folder in aperture. If I selected that folder and click export - folder as new library. Will this do the job without loosing anything? I take it i'll create the new library from the folder, then delete the entire folder from my current library on the macbook? Theres also a couple of options when exporting the new library. Relocated referenced files and include previews, or something similar. What shall I check? Thanks, Luke.