M9 at the beginning of an immage engraving is a problem for me, please remove it, its not needed

I use M8 for air assist and M7 for very low pressure air during foto engraving to keep my lens clean.
So I have M7 in my startup g-code.
But this is switched off by the M9 in the genrated g-code and that is bad for my lens, so i need to edit it out every time.
Please put the M9 in the g-code here only if there as an air-asist on before.
It is not needed in case of photo engraving, because the air assist is already off when starting.

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