Hey @Ricardotlpz ! This is super quick to do using a ‘Match Action’ on your image marker proxy and doesn’t require writing any code. Set up your UI canvas with the marker instructions, and then on the marker proxy, add a ‘Match Action’, then use the ‘Add Event’ button in that component to add a ‘On Match Acquire’ event, connect your canvas, and set the dropdown to GameObject.SetActive, with the checkbox to ‘false’. So your proxy will look something like this:
You’ll see that I’ve also added a simulated image marker into my simulation scene, so I can test this locally. You can do that using the MARS Panel (Window > MARS > MARS Panel), and pick ‘Synthetic Image Marker’ there, and make sure to set that marker and your marker condition up to use the same image.
I attached a package containing the scene+asset I put together for the screenshots.