Revit AEC Data Model Extensibility Sample with Shared Parameters
This sample Revit 2026 add-in, built with .NET 8.0, bridges local Revit elements with the Autodesk AEC Data Model API. When a user selects a Door or Window in a cloud-hosted ACC model, the add-in resolves the element's Hub and Project context, identifies the corresponding Extension Group, and displays its cloud-based extension properties in a custom dockable panel — in real time with the options to save or upload.