I need to work my images and file very quickly while in the field. This is a very time sensitive workflow and I would like to save time by "adding" images while importing rather than actually copying them to my laptop. The theory being that I can work the ones I need to off the sandisk and move everything to the hard drive once I'm home. I have not been able to make this work. If anyone has, I'd like to hear how you did it. If this is a limitation of LR5, this is a request to the developers to consider making this happen in a future release.