To add links to your post ship tracking page you can follow these simple steps
Step 1: Go to Settings

Step 2: Click on Branded Tracking

Step 3: Go to the Links section

Step 4: Enter the name you want for the button in the Link Text box and the corresponding link in the Link Url box and then click on Save

You will receive a message on the top right corner stating "Settings Saved Successfully"
This means you have added a link to your tracking page successfully.