How can I enter my USCG rating of Quartermaster as well as the Quartermaster/Signalman 'A' Schools that were at NTC Orlando?

In your profile, you mean?

Under Resources, click on "Support," and then click on "My Profile" to find one of the 11 topics listed that will provide the information that you need. Below is one of those topics from My Profile.

https://rallypoint.force.com/Support/s/article/how-to-change-branch-of-service-2020-03-13-10-21-35