Open Elementor Pro Gallery in Lightbox by Clicking on Button or Link

[isfak]

Hello,
I need an Elementor Pro Gallery to open in lightbox if the user clicks on a button or a link. The gallery needs to be hidden from the user and just displayed in lightbox when the button or link is clicked. (I guess I have to reference the first image element of the gallery via JS, then the rest will follow, but how do I do that?). Any ideas?
Thanks!