Increase clickable area to get to the previous/next image

Hello dfactory team,

I have a question according to your lightboxes. I am currently using the free version of this plugin and was searching for a fullscreen lightbox, that enables this functionality:
I would like to get to the next or previous picture by clicking on the whole screen. So basically: the first 50 % of the screen will get you to the previous image, the other 50 % to the next one.

Is this possible with your free plugin or with an additional lightbox?