Every Image can have a own caption. You can separate the caption with a break.
Checkbox “Activate Imagelightnox v2” must activate. It doesnt work when you select the Click-enlarge checkbox or when you use the link field.
Another reason when the lightbox not work is, that you use another extension which work with the same XCLASS.
Yes, pess “ P “ for the previous image and “ N “ for the next image. “ X “ is for closing the clicked image.