This tutorial shows Sony Alpha users how to set up their cameras for both Back-Button AF and Manual Focus with Focus Magnify and Focus Peaking
NOTE: Eye-AF in AF-C is possible on the A7RII, A6300 and A6500 cameras but not on this older A7 camera.
One of the creative topics of my one-on-one training sessions and workshops is how to set up the camera for a range of shooting scenarios.