i have a surface pro 4 with limited hard drive. (I should not have done that).
When I upload images from my cards can I upload directly to external hard drive that my surface pro can reference when working in Lightroom.
in other words I do not want to store any images on my surface pro.
Is tHis possible?
Yes. In the import dialog you select the location the image files are copied to in the Destination section in the right hand panel.
Or you can manually copy the image file to the external, into a folder you create, from the cameras memory card then select the Add option at the top of the import dialog and the folder the images are in on the external drive as the source.