Place your cursor over Reference Data and left click on the sub-option Station Addresses.
Left click on the Add button 
located at the bottom left hand side of the table.
Enter the new station address by completing the displayed fields.
The field highlighted in green is required.
If your screen shows some of the fields highlighted in yellow this is because of a setting in the Google toolbar that has an auto fill feature. If you would like to change the setting so that fields are displayed properly go to Views/Toolbar on your browser and make sure that Google is unchecked.
Use your Tab key on your computer keyboard to navigate through the fields or left click on each individual field.
Left click on the Insert button 
to save the new information.
Left click on the Cancel button 
if you do not wish to save.