@RJM_Web_Design Sorry for any confusion in my last message.
I am new to Virtualmin used to be on CPanel and always had it setup as nameservers and hostname using an active website domain name. I was assuming it would be the same as it was over in CPanel but then noticed Virtualmin does things a little differently. Regardless I have all websites visible by Google, Amazon and Office 365 but still wouldve liked to use primarily the nameservers I had.
But when I added the hostname orion.example.net it made that one of the nameservers and created a Virtual Server (Website) of orion.example.net to which when I migrated all my websites over it showed two example.net domains; one being the hostname orion.example.net and example.net (website).
But like you said I may have been better off creating a separate domain name just for hostname and nameservers however all my clients are using the nameservers and would have been a pain to change them over to it.