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This will attach the selected material to the selected objects in the outliner.

You can also attach material to an object in the usual way within the Material Properties tab .

Click New:

Then click Add RenderMan Nodetree 

and select the RenderMan material you want to use.

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RenderMan shading networks will always terminate at with a RenderMan Material Output node.

Here's an example shading network:Image Removed

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Patterns

Pattern nodes can be connected to materials or other patterns in the usual way using shader editor Shader Editor . You can also connect pattern nodes in the material properties Image Removed. or directly within the Material properties Tab Image Added.
For parameters that can take a pattern connection, a  will be shown next to the parameter value. This is our connection widget. 

Clicking on the widget will show our connection menu. Here's an example:Image Removed

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Patterns will be broken up into categories for easier browsing. The __EXISTING__ section will show existing nodes in the shader graph that you can connect to. If the parameter is already connected some more options will appear.

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