Most people are smart enough to figure this out but thought I’d share and save someone the wasted time. Microsoft finally included the RSAT tools with Windows 10 1809 and you just go to the Apps / Add feature to install them. Great, I tried and it seems the add features function is broken when a standard user tries to install with elevated privileges. I tried entering the admin account over and over but the Add Features list never populated, the spinning progress circle set there forever. I had to sign into the machine with an administrator user account and add the features.