Hello, I've noticed that some of the materials aren't shown in the material asset library when using the [RenderMan] command. Mainly, it shows only materials that have only this at the start of the "asset" file:
{
    "RenderManAsset": {
        "usedNodeTypes": [
            "PxrSurface",
            "shadingEngine"
        ],
But if there are more nodes in the "usedNodeTypes" then the asset library doesn't show the material as available, for example if it has:
{
    "RenderManAsset": {
        "usedNodeTypes": [
            "PxrTexture",
            "PxrManifold2D",
            "PxrLayer",
            "shadingEngine",
            "PxrBump",
            "PxrLayerSurface",
            "PxrLayerMixer"
        ],
Then the material gets ignored.

Are there plans to support multi-node materials with the [RenderMan] command? Because most of the example materials use that and can't be used in Metasequoia.