It’s not possible on ALC at the moment because we’ve set the limit of one ZED per design. But that’s because I assumed no one would ever want two ZEDs on a single board. Silly assumption on my part!
What are you building? It looks like one ZED is providing the correction data to the 2nd ZED. That makes sense for a moving baseline application but I’ve only seen those needed in aerospace applications.
If I were prototyping two ZEDs, I would use Qwiic and daisy chain them on any of our ESP32 boards that has a Qwiic connector. You’d need to change the I2C address of one of the modules using u-center (via USB) or over I2C but it works fine.
Once I understand your application a bit more we can easily configure the ALC block to allow for multiple on one board.