reference-point for probe_offsets in dual extruder setup

Controllers Smoothie
1

I’m confused about how to set { leveling-strategy.three-point-leveling.probe_offsets }:
If got a dual extruder setup (with -12 and +12 nozzle x-offsets) and a probe with 30 y-offset).
Can someone explain to me what reference point should I use for probe_offsets?
Thanks in advance!

Imported from wikidot

2

I expect all offsets are from your 0,0 point, so just set the offsets as you described them here