This is a great resource telling you everything you ever wanted to know about the 1400 series of appliances. One of our partners Danny Jung put this together and is continually updating it!
Tomer Sole produced some videos on how to best leverage the Compliances Blade in R80.10.
It's pretty straightforward if you want to block all use of it, a little bit less so when there is legitimate use you also need to allow. Still, something Application Control has no issue with.
One way to achieve this is to Set Installation Target for Policies, which has been an option for quite some time. Another way, introduced as a "beta" feature in R80.10, is described in this article.
Some legacy features were not brought forward to R80.x as they have been replaced with newer features. In this thread, legacy user groups need to be replaced with Access Roles (an Identity Awareness feature).