• From the current view, click on the add-in button
• A new window form will open up to let you choose the List 1 and List 2 elements by Category, Family, and Type. 
• The Categories will show up as default. You can double click on the name of each category to load the Families and Types of that Category and select as you like.
• Make sure you select List 1 and List 2 correctly
• Click on the start button to run the code
• The status of the running code will be shown on the Autodesk® Revit® status bar to indicate the progress

Activation guide:

The add-in is automatically activated based on the Autodesk account you have used to purchase the add-in, so please make sure to log in to the Revit with the same Autodesk account before you start using the add-in.

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) and uninstall as you would any other application from your system.