New confirm payment Email

Hello, I am using wc-confirm-payment and I would like to change the trigger of New confirm payment email. I understand this emails is sent to admin when the order is “on-hold” and the client fill the Confirm payment form. I would like to change the triggering status from “on-hold” to a different one.

I can’t find exaclty the lines of code I should change. Could you help me with this?

Thank you in advance!