The first time you invoke the Invert command with selected objects when there are no hidden objects, it works just like the Isolate command. But unlike the Isolate, you can call Invert when nothing is selected! In this case, the program will hide all objects of the model or the current sheet. And a repeated call will show them all back.

The installer that ran when you downloaded this app/plug-in from the 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.

Read more https://sites.google.com/site/avcplugins/invert