Hello everyone,

1. How can we make the VR controllers suitable for Meta Quest 3? I'm not talking about the appearance of the controller. I can solve this with the 3D models I got from Meta's page. What I'm talking about is; how can I change the buttons of the controllers specifically for Meta quest 3? Can I assign keys to the buttons? For example, I have a bus project. I have placed it in a 3D city. I added a Car Controller. Let's say I want to drive this in a VR environment. How will I do that?
2. When I add the XR Preset in the program, what should I base the height adjustment on? Normally, in the other VR software I used, a person of a certain size would come into the environment and the camera would be according to that person's viewing direction. When entering the VR environment, the position of the controllers and the viewing direction of the camera were as they should be. Here, however, a manual adjustment is in question.
3. The Color Picker feature is very good, is there a way to see this and similar features in the 2D menu in the VR environment?
4. I have a workstation with a Quadro RTX4000 8 GB graphics card, 64GB RAM, and a Xenon processor. But this is not enough for Creative Experience in VR. There are many freezes. I was going to do a big project, but in the tests we did on different PCs, we realized that the hardware we have is not sufficient.  What are the minimum system requirements you would recommend to get good performance in VR?
    

I would really appreciate your help with these questions. I especially need a good source for the first question.