Tap each device you want to. Google smart home only supports oauth with an authorization code flow.

Google Home Hubitat Documentation
Google home create group. Open the google home app. Tap next enter a. To create a developer project. Open the google home app. Google groups allows you to create and participate in online forums and email based groups with a rich experience for community conversations. Open the google assistant app and scroll down to find a list of devices not in rooms.
Go to the actions console. Tap each device you want to include in the group. A tick will appear next to each device that you select. Tap on add to a room at the bottom of the screen. To create a room select one of the devices and youll see an option add to room which would allow you to add the device to an existing room or create another one. Enter a name for your project and click create project.
Create a group open the google home app. Make sure all audio devices and your mobile or tablet are connected to the same wi fi network. Create a group choose group settings if youre signed in to a work or school account the options you see might be different. Make sure all audio devices and your mobile or tablet are connected to the same wi fi network. Choose the appropriate home location. Create an actions on google developer project.
Whats really cool with rooms too is if you add your home device to the same room you can omit your room name in your speech so you can do the following. At the top left tap add create speaker group. Tap each device you want to. Organize with favorites and folders choose to follow along via email and quickly find unread posts. For instructions on how to set up your oauth 20 server see implement oauth account linking. To learn more contact your administrator.
Tap add create speaker group. Open the google home app. Tap each device that you want to add to the group. At the top left tap add create speaker group. At the top left tap add create speaker group. Tap on any device to add it to a room.
All of your discussions in one place. Google groups allows you to create and participate in online forums and email based groups with a rich experience for community conversations.