How do I change groups in the Convoy 4Groups AMC7135*4?

Am I supposed to solder the joints in the circle to change groups?

https://www.aliexpress.com/item/4000090335025.html?spm=a2g0s.9042311.0.0.223d4c4drNVhY6

Yes, just bridge the gaps between the two pads for whatever mode group you want.

Thanks toddcshoe!