Hi @Raj_Patel ,
- The OS image should support the T265 (tracking camera) and D4xx (depth camera). The other scripts that you listed are not included as they are not essential but you can install them quickly.
- You can use multiple D4xx cameras with the Up board. UP Board has only 1 USB3 port so you will need a powered UWB hub. Even then, depending on the number of cameras, resolution and framerate, there will likely be a decrease in performance and stability. But it is possible.
You might also be interested in this blog post: GSOC 2020 - Improvements to Object Avoidance, Conclusion