Importing custom .mobileconfig profiles into Mosyle MDM

Acknowledgements: Full credit to Tom Case on the MacAdmins Slack for this tip.

It's not immediately obvious that you can import custom .mobileconfig profiles into Mosyle MDM, but apparently you can if you go to Management > Certificates > (click on profile or add new one) > Select the file.

Those can be any .mobileconfig files—they do not have to be actual certificates.