After you have installed the plug-in you can find the Isolator icon in the Ribbon Tab “LezTools”.

It shows a window with all Revit filters, both rule and selection filters.

You can select one or more filters in the column Isolate or Hide and then you have to click the button Apply.

The result is shown in the temporary window, then you can change the view and apply again the same choice.

The Reset button closes the temporary view.

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.