Modify cad inserts colour without exploding

Hello, I have created this and it works as expected, but I want to be able to change two things in it. i am unable to make it work. any help?

  1. want to be able to select all CAD imports and apply rather than selecting individually.
  2. if i can further modify to change Concrete fill hatches (Ex:from black to grey)

There is a node CAD Layer Overrides from GeniusLoci:
image

in Python you get the Category, which is the same name as the CADLinkType of the ImportInstance. From there you’ll find the subcategories. From there you can set the LineColor of the layer. Of course, this assumes your CAD file is drawn ByLayer. If you want to override just the element - you’ll have to dig deeper.

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Thank you Aaron