Alas, it doesn't work.

I notice the pop-up help says

"Styles have default patches for each track. If you do not want BIAB to send these patch changes, you can disable this. Note: this is different from the patch changes that you save with your song."

If a song has a default patch, why does BIAB send a patch change? I'm the one who wants to "send" a patch change.

Assuming I succeed, why wouldn't I save it with my song? *What* is "different" from "the patch changes that you save with your song?"

What is the point of overlaying something so simple with this convoluted structure of switching? It's like you went to switch on the light, the light doesn't switch on, and they tell you, oh, didn't you know, you have to uninstall a different switch and reinstall it, because we designed it that way to make things easier for you.