There is no  setup steps for plugins itself, but you need to setup each service you would like to use.

Current available services:

Note: You do not need to setup all of avaliable services. You may choose any of them you would like to see in your project.

After you done with the services setup, open the plugin settings:

Window -> Stan's Assets -> Unifayed Analytics -> Edit Settings 

and enable desired analytics services as showed on the screenshot bellow:

Now you ready to add analytics Impementation to your project.