It would be nice to be able to scroll through all thumbnails individually using LEFT/RIGHT keys in the lightbox carousel (and may be Shift+LEFT/RIGHT to scroll in batch). How convenient it is to use Esc key to hide the lightbox.
Resurrecting this thread 'cause I just tried to arrow left/right through the lightbox - what a nuisance! Especially when it resizes and I've got to move my mouse that couple of hundred pixels up/down!!!
This is also I was wondering about - I searched before I actually made a thread despite how old this thread is. I normally upload photos to my forum of all different sizes which changes the lightbox height a lot of the time and also moving the arrow causing me to have to scroll my mouse up and down and all other the place to click to the next picture, whereas having the right and left button will simply go to the next photo which I was hoping was implemented into the forum but it hasn't, which is why it'll be a great addition!