I use a combination of powershell and procexp to accomplish this in backstage.
In powershell,
Install-Module -Name DisplaySettings
Set-DisplayResolution -Width 1920 -Height 1080
This will set the screen resolution.
The backstage shell will be incorrectly sized, so launch procexp from the toolbox and find Screenconnect.WindowsBackstageShell and rightclick, Restart. This will re-launch the WindowsBackstageShell at the current resolution.
I use a combination of powershell and procexp to accomplish this in backstage.
In powershell,
This will set the screen resolution.
The backstage shell will be incorrectly sized, so launch procexp from the toolbox and find Screenconnect.WindowsBackstageShell and rightclick, Restart. This will re-launch the WindowsBackstageShell at the current resolution.