I have lightroom latest version. I have an in-computer hard drive full of photos. It is clogging the machine and I am running out of storage space. To make room, I would like to transfer most photos to an outboard portable hard drive. How do I do that without losing all the hard earned flags, stars, tweaks, and other data currently stored regarding those moved photos and confirm I can still locate them again when using Lightroom (which will remain on the main hard drve)?