There are some new features coming to ATEM Constellation models in the upcoming ATEM Switchers 9.6.2 update. In addition to adding support for Visca over IP camera control in ATEM Software Control, audio mapping is coming to all Constellation HD models. The ability to set borders for the SuperSource boxes, a feature that was only available on a small number of high-end switchers, is finally coming to the ATEM Constellation HD and 4K models.

Multiview overlays and border controls, previously available on the ATEM Constellation 4K and 8K models, along with the ATEM mini and ATEM SDI models, is also coming to Constellation HD switchers.

I may need to update MixEffect in order for the SuperSource borders feature to become visible, but the Multiview overlay changes should appear automatically.

Audio mapping will require some more time to implement, since this is a brand-new feature that I have not been able to work on (due to not having the requisite hardware).