[Question] How does the "converability" between Coins and Numismatic Overhaul Bronze work?

Hi, the changelog for 0.3.3 state there was some sort of convertibility between coins and bronze from Numismatic Overhaul added, but that's all the mention I can find. I don't see anything in the config or the wiki about how to configure it, but on 1.20.1 with Clutter 0.6.0 and Numismatic Overhaul 0.2.14 I'm not seeing any way to convert them.

How does this work?
