WhyI cant change pin definitions on teacup firmware? (no replies)

Hello, I'm trying to add z enable pin definition on teacup firmware. But im getting this error

dda.c: In function 'dda_start':
dda.c:356: error: 'DI04_WPORT' undeclared (first use in this function)
dda.c:356: error: (Each undeclared identifier is reported only once
dda.c:356: error: for each function it appears in.)
dda.c:356: error: 'DI04_PIN' undeclared (first use in this function)
dda.c: In function 'dda_step':
dda.c:694: error: 'DI04_WPORT' undeclared (first use in this function)
dda.c:694: error: 'DI04_PIN' undeclared (first use in this function)

Also, I get similar errors when I try to change other pins (for example stepper pins etc.)

What should I do to change and add pin definitions?

Thanks!