Deploy to … / Update the hub only
Screen: Deploy.
What it is
The main button. Deploy to <home> sends the app (template and people) to the phones, then the signed settings to the hub. Update the hub only shows when only hub settings changed; the phones are not touched.
What to enter
Press it. It saves the project first and asks for your authenticator code once per sign-in.
What it changes
Phones: the new app. House: the hub gets its new settings. The time of the deploy is stored.
If it goes wrong
Red lines under the button hold the deploy (for example a duplicate name). The Deploy monitor shows each step. If the hub part fails, a box offers to send to the hub again.