1. The first time you run the app, it will add some registry value to register app with Autodesk® AutoCAD®. Choose "Always load this application", and then the app will load automatically every time AutoCAD is started.
   
   
2. When AutoCAD loads, type 123COPY to invoke the command
   
   
3. Select object(s)
   
   
4. Specify base point. You can change the Increase Entity by "ENTITY" option.
   
   
5. Specify the second point. You can change the type to Manual, Array, Rotation Array or Increment.
   
   
6. Specify the third point if the type is Array or Rotation.

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 7/8.1/10/11) and uninstall as you would any other application from your system.