Go to the following site in a browser:
Login using your RIT credentials
Be sure to put MAIN\ before your RIT username
Download "EMS Campus Prod"
When download is complete, the app can be opened from your downloads folder and pinned to your dock
To pin the app to your dock, right click on the app icon, hover over "Options" in the menu and select "Keep in Dock"
Make sure that the Gateway settings have the user's credentials. This can be found in "Preferences".