About the Smoke Detection and CO Detection Notifications

I just got my wyze2 cam and see a setting in the app for notifying me when the camera detects sound from smoke and CO detectors. It will allow me to turn on one but when I select the other then it turns off the other one. Can I only select one at a time and is this because I don’t actually have these devices. I’m guessing here but assuming that these are additional devices that will work with my camera if I have the camera set to notify me when it detects that either the smoke detector or CO detector goes off… am I correct with this assumption? If not can someone clarify.

You should be able to turn both of them on.
Try this , go close the app and then kill the app and go back and see if it works to select both