State Preference 11.x

There was a easy readable GUI feature in 9.x or 10.x HA>"State Preference" you could either make the Unit a Preferred State Standby/Primary/None

Since I've upgraded to 11.1.0 HF5, I've been unable to find this feature? Currently running Active/Standby pair.

Under traffic groups I see Auto-failback is this the "State Preference" feature? At the moment Autofailback is disabled on each LTM. Do I enable "Auto-failback" on the Primary Preference LTM node and disable "Auto-failback" on the Standby unit Preference. For reasons I must make one Unit Primary and the other must stay in Standby mode, unless the Primary fails, if the Primary fails and comes back in a healthy state I want this unit to again become Primary again. I want this unit again to be the Primary (preferred state) i.e - I only want the Standby unit to be used, if the Primary in is a critical state i.e - switch or hard disk problem

Thanks.