how to reduce the number of purges

I am looking for the section of code that does the “purges”. I want to reduce the purges to one or two max, especially if i am not worried about blending, ie blue and black. I want to tweak this until i find a fun spot. I stopped printing to print a poop chute after i found the mess behind the tower, which isnt fun to move on your own.

In creality print you can set how much there getting purge from one to the other color. So when you go from yellow to bleu and you set it to 0 the printer wil only purge a little bit for the pressure like a single color print.