lightbox with arrows for the adv images in a block

Is there a chance to implement with a class the lightbox with arrows for the adv images in a block? I mean when I place a specific class these images of a specific block that I choose will be opened in a lightbox all together, but only the ones of a specific block put in a class a not all of them. I am not talking about the adv galleries, that now perfectly works, but I mean the single images in any block I create and the possibility to choose to have a lightbox with arrows for the images inside that block. I don't think is very hard to implement as it's the same lightbox of the advanced galleries that could be applied for the adv images in the blocks on demand. Please let me know Thank you soooo much