So it looks like Paul changed it for me in this application and has noted the missing feature.

But it doesn't seem like there is a way for me to change my name from login.intersystems.com either. I have the ability to change my password but not my name.

There are individual applications, including the WRC/TRC but also our internal applications, in which I can edit my displayed name. However, none of these applications change the underlying "FirstName, LastName" that I assume is defined somewhere in our Single Sign On implementation. 

Furthermore, I simply want to change my display name in this application and not necessarily in every application.