replacement for MKS Gen-2Z v1.1

Hi, Usually most of the controllers have X,Y,Z ,E0 and E1. Mine has X,Y,Z1, E0 and Z2. How can I switch between these two controllers and what options in the firmware do I need to do to work ?

If you tell marlin you have a Z2 stepper driver, Marlin automatically uses the first unused E (in this case E1) as Z2

I am planning to replace with a combination of MEGA 2560 and RAMPS 1.4 or 1.6 but I do not know how to make connections for Z axis with 2 stepper drivers. On both RAMPS boards on the Z location there are 2 pairs of 4 pins. Shall I insert the first stepper driver in the Z stepper driver location and the second one on the E1, and the 4 pins cables should be placed where ? ...both on the 2 Z pairs pins location or separately ?

the ramps dual z stepper motor plugs are on the 1 Z stepper driver in parallel.

When using two stepper drivers one stepper is plugged into either z plug and the second one is plugged into e1 stepper plug

I have switched to RAMPS 1.6 plus version but I cannot connect two stepper motors on the Z plug due to plastic configuration of the plug motor so, in the Marlin code I have uncomment line #define Z_DUAL_STEPPER_DRIVERS from the Configuration_adv.h and now the second motor is instead of E1.