1. Type 'SPPMAPPER' in the command line to open the  GR_SPPMAPPER palette.
2. Configure your desired output layers, colors, and point types (Civil 3D Cogo Points or standard Autodesk® AutoCAD® Points). Click 'Save Settings'.
3. Click either 'From Section View' or 'From Profile View' on the palette.
4. Select the corresponding grid in your drawing area.
5. Click points anywhere on the grid. The tool will automatically project these points to the Plan View and connect them with a 3D Polyline.
6. Type 'U' to undo the last point if needed.
7. Press Enter or Right-Click to finish the command. 

The installer that ran when you downloaded this app/plug-in from Autodesk App Store will start installing the app/plug-in. OR, simply double-click the downloaded installer to install the app/plugin. You may need to restart the Autodesk product to activate the app/plug-in. To uninstall this plug-in, exit the Autodesk product if you are currently running it, simply rerun the installer, and select the "Uninstall" button. OR, click Control Panel > Programs > Programs and Features (Windows 10/11) and uninstall as you would any other application from your system. 

This plugin is built specifically for Civil 3D and relies on its core API (Alignments, Section Views, Profile Views).

It will not function in standard AutoCAD or other vertical products. 

Clicking entirely outside the boundaries of a Section or Profile View grid may result in an "Invalid location" warning prompt.

Simply click inside the valid grid boundaries to continue the command.