I have one question which wasn’t described in any docs or guides which I have seen. I’m looking for some way to add custom button to the gallery menu. For example I have top menu with 5 gallery categories and I need to add button which gonna link menu item to the popup with contact form. Now I’m using regular link button which inserted before gallery shortcode in post, but in current page layout I don’t have extra space for such button.
Sorry, but current gallery version do not have such functionality. It’s very interesting idea, so we’ll try to implement this functionality in future gallery releases.