Credit: Andy Walker / Android AuthoritySamsung Gallery packs so many features, but not all of them are easy to find. You may be familiar with Audio Eraser, Generative Edit, the collage maker, and maybe even the built-in video editor. But besides those obvious ones, there’s a whole bunch of features that don’t show up anywhere inside the app, at least not by default.They’re all tucked away inside a hidden menu called Gallery Labs, and the sad thing is, most Galaxy users have no idea it exists.