Python Pipe Support
With this app, you will be able to create pipe and cable tray supports that are not included in Autodesk® AutoCAD® Plant 3D by default. All these additional supports are fully customizable and parametric, so they can be modified easily to fit your needs.
More info here: https://www.tamashalasz.com/pipe-support/
Note: This application uses a custom installer (and not the standard App Store installer).