Scroll bar on right side of Light table view
I know you can scale the thumbnails down until you can see 21 across, but when you have many tens of thousands of images in a database, it would be handy to have a scrollbar on the right hand side of the light table, so you could quickly get from one end of the collection to the other.
Yes, I have tags in all my images and can usually search for an image that way. But sometimes, you just wanna scroll through your history of images in bulk. :)