Is there a way to run fan when printing

Let me explain; when printing, if I want to adjust the fan or turn it on/off or kill the print, it will not respond to that command immediately.
Often, I use emergency stop or hit reset for a simple kill. However, that leaves the head on the print for a time.

Obviously, some commands get thru immediately like emergency stop and bed/hotend temp changes,. Fan and kill commands would be good also.
Does anyone see this as an issue that should be addressed?

Hello,

first QUEST
Printer ?
Slicer ?


in Cura you can set a script for each level (high / printlayer)

like
bedtemp set layer 00 - 50 temp = 60°
bedtemp set layer 50 - 200 temp = 50°

and some other cool stuff