If you would like to alter the name of a channel or carrier in Shiptheory, you'll want to open up your user dropdown and click on Manage Carriers/Channels.
Next you'll want to find the integration you wish to rename and click on the pencil just below the name. This allows you to edit the name of the integration to whatever you wish. When you're done editing the name just click off the integration square and it will save the name for you.
From now on the integration you renamed will be referred to as the name you chose!
If you have any queries or questions about this, feel free to contact support.