The “Charge Priority” setting was there last night but it has disappeared this morning. Powerwall does not show up anymore on chargeHQ App home page. Solar, Powerwall 3, two Wall Connectors Gen 3, and two tesla cars here. I did not touch the “consumption” button that would make it disappear.
Resolution: Powerwall discharged to 0% overnight, and it looks like when it gets to 0% ChargeHQ no longer sees it. As soon as Powerwall recharged a bit in the morning, ChargeHQ saw the Powerwall again and the “Charge Priority” feature reappeared