I actually have a question about Octane for blender 2.8, specifically about material nodes

Specifically, I’m wondering where A) I can learn about how to use the material nodes.
B) How to do the thing you can in cycles where you plug a color output into a vector input on an image texture/generated texture to change the scaling or position of it.
And C) How can I get more noise methods such as voronoi or “magic texture” like in cycles?

First time posting, please be gentle! Thanks in advance!