Ui help - DMG numbers

Hello, what is the setting in the UI that makes damage numbers popup as an abbreviated form?

Example: You hit target for 1,121,600 DMG

GOAL: You hit target for 1.1M.

I am looking for the pop-up of 1.1M instead of seeing the entire number. I have seen this on YouTube videos before but I don’t know how they are doing it.

Ty!