Remove old Management-Servers from Reports/Monitors

Hi all,

in Reports and Monitors, when you select a server from the drop-down menu, old sep Management-Servers are listed which are not in use anymore. See attached screenshot.

Is there a way to remove them? We tried to do that under Admin -> Servers -> Local Site -> Edit Site Properties -> General, but there are only those Management Servers listed which are actually in use. The old ones are not displayed there and cannot be removed.

Thank you.

Best regards

concentric