Single thumbnail gallery

Hi,

Im trying to figure out for couple of hours how to add a single thumbnail image gallery, and display only few images that I have added to that particular gallery?

no success.

The scenario is:

I have 3-7 images in a gallery, 15 galleries in total.
I would like to display only those 3-7 images in teh lightbox of that particular gallery.
Crrently as its set up, I have those 3-7 images in a gallery, however when I go through images in a lightbox, not only the images for that gallery are displayed, but images form other galleries are in that lightbox too.

Plus I woulf like to set up the galleiers in a 3 column rows, as so:

[foogallery id="391"] [foogallery id="394"] [foogallery id="404"] 

[foogallery id="406"] [foogallery id="408"] [foogallery id="410"]

my CSS:

#foogallery-gallery-404 {
	width: 32%;
	float:right;
}
#foogallery-gallery-394 { 
	width:32%;
	float: none;
}

#foogallery-gallery-391 {
	width: 32%;
	content: left;
}

gallery settings:
https://ibb.co/kQPX7n

The page I need help with: [log in to see the link]