I'm attempting to create a notification group for all the family's cell phones. In the UI, I navigated to Helpers > Group > Notify Group. Once in that dialog, the "Members" drop down would not allow me to select any devices; it just says, "No matching entities found". I have multiple mobile phones with the companion app installed, and I've successfully sent each notifications before.
Am I misunderstanding what Notify groups are for? The documentation is a little confusing (to me, at least). The Group integration doc at https://www.home-assistant.io/integrations/group/#notify-groups says, "Notify groups are used to combine multiple notification actions into a single action." This makes me think that Notify groups are meant for combining actions, not targets / devices. However, the second sentence in the same doc says, "This allows you to send notification to multiple devices by performing a single action." How would it allow you to do that if it didn't group devices? What am I missing?
P.S. the documentation is again a little confusing (at least to me - I may be a fool) when it comes to whether to use the UI or YAML for such groups. The doc page linked above says, "Notify groups : This group is a special case of groups currently only available via YAML configuration." However, there is a note on that same page that says, " Note Notification entities can only be grouped via the UI. The older notification actions can only be grouped via YAML configuration." I'm not clear on what the distinction is between the two?