Rebinding Allow Create Fields?

[C04L]

Hi everyone,
I am using a wheel, keyboard and mouse to play. i have bound pipe out O and Y to a button on my wheel, and decided to add GPS's toggle gps to this button too.
after restarting the game i lay my plow down ready and sat back to relax with my wheel and pressed my button to auto follow gps's line, but i also started creating fields, i dont want to do that.

i looked in options/kebinds for 'allow create fields' and didnt find it, I looked in inputkieybingd.xml and searched allow or create and had 0 results.

How do i change the Key bind of Allow create fields? just wanted to add Shift+ to it.

Hope someone can help me

[C04L]

ah is it tool function 3?
hmm damn