Marlin auto bed leveling help

I must first start buy saying I am a complete newbie at editing firmware and 3d printing so be patient.

I have a CTC Prusa i3 clone using Marlin 1.1. and Arduino 1.8.4. for editing.
The motherboard is branded as 2560 REV A which I have uploaded a bootloader onto and installed the latest Marlin firmware and all works fine.

I am trying to enable auto leveling using a SG90 servo on the Z MAX pin and a micro switch on Z MIN pin.
I have worked my way through the marlin firmware to enable Z probe and Auto leveling but it seems I am making to many setup errors as when compiling, error after error comes up.

Is there anyone who has done this and can post their setup of config H so I can see where I am going wrong ??

Thanks Eddy

Shouldn't the SG90 servo be on Servo-0 ? It is OK to have the Z-Probe on Z-Min.

The board is the same as the Geeetech and I have wired it the same way as they recommend with there 3Dtouch.
[www.geeetech.com]

Its the firmware settings that are my sticking point.

Eddy