Sign *.rdp connection files

I don't know if such functionality exists yet in RDM, but is there a way to automatically sign the on the fly created RDP connection files?

The benefit of signed RDP files is that there would be no untrusted publisher message on connection launch of external RDP sessions.

The requirement would be that every RDM user has to have an appropriate certificate in his private or machine certificate store and RDM has to know the fingerprint to get the connection file signed with rdpsign.exe.
The process is described here: https://docs.microsoft.com/en-us/windows-server/administration/windows-commands/rdpsign
So either a global certificate could be used for all administrators of a company, that has to be in place on all administrator workstations or maybe a personal certificate for every user could bey used - but I think thats much harder to handle as RDM has to use a different certificate fingerprints, so that the appropriate fingerprint is used for rdpsign.exe.

It would be great to see such functionality, or did I miss another way to get rid of the untrusted publisher messages?

Best Regards