Hi,
Thank you for posting your query. According to your description, here are some suggestions for allowing remote to mutiple servers at a time.
First, you need Microsoft Remote Desktop Client, you can download the right version from this official link. https://learn.microsoft.com/en-us/windows-server/remote/remote-desktop-services/clients/remote-desktop-clients
Then, Invoking the app a second time simply raises the connection in process.
File -> New Connection ( don't use short cut)
Best Regards,
Grace
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