Typically, DNS records are changed through your domain registrar, and in this case it would be InMotionHosting. However, InMotionHosting doesn't host DNS records for domains that do not purchase a hosting package.
In order to set your needed DNS records you can either transfer the domain to GoDaddy, which will take about 7 days, or use a third party like CloudFlare on the baseline security plan, which includes free DNS management.
1. Start by pointing your domain to the CloudFlare nameservers. You can change them within InMotionHosting's domain dashboard, this article should have all the steps you need on changing your Domain's DNS records on InMotionHosting:
This article shows you how to find the nameservers for your specific CloudFlare account. It will then provides steps on how to add your DNS records:
3. After you successfully point to CloudFlare by adding the nameservers into AMP, you will be able to create an A record and CNAME record within the CloueFlare dashboard. The CloudFlare baseline security package is free, so adding DNS management should cost you absolutely nothing.
You will be adding two records to your DNS zone file to ensure the domain points to SpaceCraft's servers:
The A record you need to add into CloudFlare is as follows:
Name: yourdomainname.com (Example: spacecrafted.com)
TTL: 10 minutes
The CNAME record you need to add into CloudFlare is as follows:
Value: yourdomainname.com (Example: spacecrafted.com)
TTL: 10 minutes
Note: DNS changes can take up to 24-48 hours to complete but are typically noticed sooner.