Feature Request: make cursor keys active to select images when cropping images

Please consider making the cursor keys active when a user is engaged in individually cropping images one after the other. Currently, when in cropping mode it is not possible to use the cursor keys in order to select the next image that one might want to crop. That inability to use the cursor keys make for a very inefficient work flow that requires the user to keep going back to the thumbnails and then selecting the next photo in line to be cropped.