Run this command from the Ribbon. You will find it in the Add-Ins tab, in the Quick Select panel. When you run this command it will give you a list of the different element types in the project. Expand the element type you're interested in and select the property that you wish to filter by. Click OK and all those elements will be selected.

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.