Image to Post

Hi there 
First of all I apologize for my not so great English.
Now, I’ve stumbled upon a problem I wasn’t able to solve. Most likely it’s a simple thing to do but please, forgive my Noobness and help me out if you can.
So When I’m working on a post, and I add a single picture/image and I want to link this picture to a certain post or page, I can simply select it and use “Insert/Edit link” from the panel and link it to a post I want.
But… If I’m adding a gallery, I cannot do that, meaning, I would have to link all the images within the gallery to 1 post, since I can only select gallery as a 1 whole item.
What I want to do is to link all the pictures to separate posts.
Also, I realize that if such thing is possible, (and I’m sure that it is) I would have troubles with light box plugin, I’ve been looking for an exclude page/post/category in Light box settings but instead there’s only include, which makes no sense since by default Light Box applies to all posts and pages. Is there a way to avoid conflict with light box?
I would greatly appreciate any help.
Thank you and sorry for my horrible English