BLTouch trigger height question - multiple swappable print heads

[Nvigr8]

Hello all. On my printer I use different swappable heads, each with its own BLTouch. One for 0.8 nozzle, one for 0.6 and one for dual 0.4 nozzles. I would like to have a different trigger height for each head. In Cura I have each one set up as a different machine. Can I just put the M31 gcode line from the config.g file into the start script for each machine? If that is not the way to do it, would someone please tell me how?

Below is the line of code I'm referring to.

Many thanks.

G31 P500 X-32.62 Y-24.92 Z3

[Stephen6309]

@nvigr8 Yes, I use macros to set G31 in superslicer start.g depending on the filament type.

[Nvigr8]

@stephen6309 Thanks for the confirmation.