Mazdaedit how to make a bruble(pop and bang) tune

I need help using Mazdaedit with making a bruble tune( pop and bang) for a 2018 maZda 3 skyactive 2.5l Manual transmission, I’m not sure how to adjust for negative timing low load high rpm and enable fueling on decell I don’t need anything crazy just enough to add some mild pops and bangs

hello i am not familiar with this software sorry

Hello you will need to set the overrun area of the ignition map between 6000 rpm and 3500 approx at about -20 deg this is at your own risk of coarse

i do not encourage it at all

Can I ask what problems you could have potentially from doing this? Is it just hard on the cat?

thanks

drew.