Vehicle: 2013 ford edge sport se
When the vehicle was purchased I received two normal keys and two remote start buttons.
one of my keys had a few buttons quit along with the remote start button

I saw ford keys with remote start buttons on them and decided to purchase one to replace my key so i can carry around one less thing. I cannot figure out how to program the remote start button. Any ideas and tips are useful. attached are images of the new key and the old key with the separate remote button.
Thank you