All BiMUp Ready Components™ follow a strict SketchUp/BiMUp Layering Convention where each element's visibility can be controlled by switching SketchUp Layers to ON/OFF.
We have created the Layering Convention to help with the BiMUp Workflow™ between BiMUp and SketchUp but, feel free to amend the list to meet your specific requirements.
Based on our experience with SketchUp our advice to other SketchUp users is to draw all 'loose' geometry on Layer0.
Named layers should be used to keep Groups and Components on them.
BiMUp Warehouse Limited Team