Image Gallery - The stack only lets me add one image

This is the way the stack works. If you want to have 10 images in the gallery, you need to add 10 Image Gallery stacks. Just be sure each image has the same Gallery name so they will be connected. Also, be sure that the name of the gallery does not have any spaces in it, or extra symbols (!@#$%^&*) or they might not connect with each other.