My main activity is architectural design, and I created this tool to completely automate the tedious workflow of setting up shadow studies and solar analysis. The standard version has been available on the Extension Warehouse https://extensions.sketchup.com/extension/5aa1ab3d-36ff-4510-ae63-84f677a36f3a/sun-diagram.

Here are some of the key features:

• Create Sunpath (Feature 1): Visualize the exact position of the sun relative to your 3D model with an intuitive, dynamic interface.

• Shadow Analysis (Feature 2): 12-Month Solar Path & Dashboards: Generate comprehensive annual sun paths and interactive dashboards right inside your viewport.
  

• Batch Export Shadows (Feature 3): Instantly generate day-by-day or month-by-month shadow studies without manually setting up dozens of SketchUp scenes.

• Diagram Styles (Feature 4) Find the perfect visual style for your project — instantly, with just one click.

• Smart Time Zone Engine: Ensures absolute accuracy for your site location's solar data.

Compatibility: SketchUp 2020+ on MacOS & Windows

I'm a bit ashamed, but I haven't figured out how to properly upload commercial plugins and integrate the API yet. Can an Admin or someone please tell me how to get Vendor access?
You can check out more details about the tools here: sundiagram.com
Thank you very much for your time and support!