So I currently have a Macbook Pro that has a total available hard drive space of 300GB.. My Aperture library accounts for 200 GBs of that..
Ideally what I would like to do is to move some of my old projects that I dont need readily to an external hard drive.. However, I'd like to keep all of the pictures in the same library..
Is there a way that I can take my old projects move them to an external drive but still keep them apart of the same library?
Waseem, a Shared folder is not enough to ensure, that two users can share an Aperture Library, because the Library is a package of nested folders and Aperture will set the permissions inside these folders like for a single user library. You need to move the Aperture library to an external drive, a disk partition, or disk images that has the "Ignore Ownership on this volume" flag set. Then two or more persons can access and modify the library, but still not at the same time.
This support article explains how to do this for an iPhoto Library, but the same holds for an Aperture Library, since they both share a unified library format: