An Azure service that is used to provision Windows and Linux virtual machines.
Hello Tony Lotito,
Sharing the UI steps from link shared by Marcin Policht here:
(1) Download the .rdp connection file from the portal


(2) Right click on the file and select edit
(3) Move to the tab Display
(4) Mark the option Use all my monitors for the remote session

If there are any follow-up queries related to it, do let me know!