I've been using my internal drive for iMovie files, but have been doing a lot more with the program recently and the folder has gotten quite large. I'd like to move it to my main external drive (a Drobo). Anybody know if there's a way to do this correctly, from within the iMovie program, to insure that it knows where all the files are? (rather than just moving the folder manually etc.) Is there a setting preferences for example, where it tells it where to store the files etc? Thanks!