How to use the Ui (BETA) in the Action Graph?

what I want to do is setting the cylinder as a button, and when it is pressed, the cube will change its material. Was I misunderstanding the usage of Graph about UI? Can it be achieved?

Hi Wayne. That Button node is actually for creating a 2D button on the viewport. The UI nodes can help you do what you want though. Have a look at the physical button on the light bulb sample asset. You can jump ahead in this video where I breakdown the light bulb asset node by node: Action Graph Samples Walkthrough - NVIDIA Omniverse - Node With Me - YouTube

Great! The samples in Create help me a lot! Thank you for your suggestion!

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