Generate GCODE without M9?


I am new here and making my first steps with Lightburn. So far so good and everything is working.

Although, I have Air Assist turned off by default for all layers, the gcode still contains a M9.

; LightBurn 0.9.20
; Marlin device profile, current position
; Bounds: X-26 Y-19.5 to X26 Y19.5
; Cut @ 50 mm/sec, 30% power
M106 S0 P2
G0X26 Y-19.5 F0
; Layer C00
M106 P2 S76.5
G1X-52 F3000
G1 Y39
G1 Y-39
M106 S0 P2
; return to starting pos
G0 X-26 Y19.5 F0

Is there a way to avoid M9 being injected into the Gcode or is this how it supposed to be?

Marlin returns an unknown command message, but it just continues and works fine, so therefore no big deal. I just wondered as it would be “cleaner”.

Thanks a lot.

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