Impact 2023 (Dynamic Constraints Edition) release is available for download, bringing with it a host of new features. Available here.
3D Tools
Most of the 3D tools are disabled unless the current layer is a 3D type. The exception is the 3D Viewer tool, which is enabled in a normal 2D layer, allowing you to create a 3D layer from it. If you are already working in a 3D type layer, the 3D Viewer tool itself is greyed out.