Marlin - setting up dual Y using E

Hi everyone,

I have done this in the past but with the latest version of Marlin I am having difficulty.

Basically I am using generation 6 electronics for a CNC mill. I no longer need an extruder so I want to put a second Y motor on the E to have a dual Y setup.

I have copied an instance of e for whenever I saw Y_enable etc in the stepper file but when I go to upload I get the following message.



Could anyone point me in the right direction?

Thanks

I have managed to get this to work for the most part.

Enabling dual Y in the advanced settings and then changing all instances of Y2 to E0 has meant that the motors power up etc and when I move Y towards the front of the machine everything works. However, when I try to send Y the other way, the motor that is attached to E0 still tries to go the same way as before I.E. the opposite way to Y?

Can anyone think of what I missed?

I assumed it was a direction in the stepper file but with dual Y being enabled, it looks like all of the directions are already set by Y?