Issues setting up dual Z axis steppers

Cont3mplation

Have had issues attempting to use Marlin firmware on my MKS Gen L v1.0, so decided to give repetier a go. Have a single extruder, dual z axis set up so wanted to use E1 as Z2. Found the "FEATURE TWO_Z_STEPPERS 0" line in the config.h file, so changed this to 1 and attempted to compile. This gave me the *'DIOORIG_E1_ENABLE_PIN_WPORT' was not declared in this scope* error in the fastio.h file, which I didn't get with it enabled. Am I missing something blatant and doing this wrong? Thanks in advance

MartinH

You need to tell config what stepper socket to use for Z2. ie 'mirror stepper socket extruder 1'
allso what setting to use for Z2 endstop.
These can be set in the mechanics tab in the online config tool
https://www.repetier.com/firmware/v100/index.php