There is no problem to change the CNAME records for your domain.
Hostlantern customers can request this service from:
Customers' Area -> Support -> Open a Support Ticket -> Technical Issues
You should provide us with the CNAME records you would like to be added to your domain's DNS and our support team will assist you further.
If you are not a Hostlantern customer, you should be able to edit your CNAME records from the control panel at your host/registrar. For more information on how to do this you will have to contact your host/registrar.
Alternatively, you can sign up for a hosting account with Hostlantern and let us take care of your domain's DNS records for you.
If you are not yet a customer, check out what our domain services include and how we can make your life easier. Managing your own domain is easy when you have the right host by your side.