Chamber fan with hot plate and PLA

HI Is there a way to adjust the chamber fan speed for a print? I can’t find it and google is not coming up with a solution. When i switched from the cool plate to the hot plate it is now running and very loudly. I am only printing PLA so it doesn’t need to be that strong. I can hack it and duplicated the cold plate and say heat that to 55 but that seems silly.
Any thoughts would be appreciated.

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you can change the G-Code for ex.
in this screenshot you see the filament Start-G-Code for PLA
as you can see if the Temperature greater than 35 C the Chamber fan speed is 70% and over 45 C than 100%

you can delete this code and only write "M106 P3 S180 " for 70% fan speed or lesser… 255 is 100% and 0 is 0%
image

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Interessting, this code sample is in both “Filament Start G-Code” and printer “Machine Start G-Code”. I changed now only the “Machine Start G-Code” but it didn’t worked so I guess you have to do it in both settings.

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I have a much more simpler solution (but yet to be tested) when you select the High Temp Plate on your global settings to use the PEI surface with PLA (and no glue) you just need to select one of your objects on the plate and click this icon from the menu bar on the right hanside of the plate
image
to select the real temp of your plate (in your case the cool plate) here

you can see I have the High Temp Plate selected and the cool bed activated