New features in 15.2.3

[J.C]

Can you provide a video demonstration of new features or more explanation of them?

1. What is "Show Octane NodeGraph" and how to enable this?

2.

Support "Shift + Left Mouse” to select material directly
Firstly, use “Right Mouse” to select target object
Then, use "Shift + Left Mouse” to select target material

This does not do anything.

3. "Support new layout in texture node menu" – this does not change anything in nodes menu.