Set-CMAutoDeploymentRuleDeployment to include missing AllowWUMU and AllowUseMeteredNetwork
Although you can now add multiple deployments to a single Automatic Deployment Rule there a couple of options that can be read but not set. These are:
"If software updates are not available on the distribution point in current, neighbor or site boundary groups, download content from Microsoft Updates."
"All clients on a metered internet connection to download content after the installation deadline, which might incur additional costs"
I can successfully retrieve all Deployments associated with an Automatic Deployment Rule via the Get-CMAutoDeploymentRuleDeployment cmdlet and see the current settings for these properties by parsing the DeploymentTemplate XML.