Marlin 1.0.5 with different E step (no replies)

Hi everyone,

I am building a dual nozzle 3D printer with different E step. I use Marlin 1.0.5. I have question about setting up the E step for 2nd nozzle.

This is the original code for E step
#define DEFAULT_AXIS_STEPS_PER_UNIT {X, Y, Z, E}

Can it be modified like this for different E step?
#define DEFAULT_AXIS_STEPS_PER_UNIT {X, Y, Z, E0, E1}

And setting up the EEPROM???

I have read some articles about this but the opinions is not same.
Thank you,