Back on topic. I spent the day rebuilding a couple of gates and I've got a couple more to go. These gates were poorly designed and the rebuilds aren't going to last long term because my hands are tied by some tight aesthetics restraints. Gates need to be well designed if they are last and function correctly long term. Also, don't overlook what you attach the gate to, it needs to be very stout as well.
Can you use the Domino for a gate, maybe. Really, it depends on the design. Search the net and you'll find plans for gates and that will give you an idea of what you're up against. If you find something you like post the design here and we'll be happy to give you more feedback.