1. First run time, the app will add some registry value to register the app with Autodesk® AutoCAD®. Choose "Always load this application", and the app will load automatically every time AutoCAD is started.

2. When AutoCAD loads, type QAR to invoke major command

3. Select object(s)

4. Specify base point

5. Specify the second-point and ArrayType options (Rotation, Rectangular)

6. Specify the third-point to end 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 7/8.1/10/11) and uninstall as you would any other application from your system.