It will work much easier and faster if you go to the full blown site rather than through the app. You can do this either on a PC or on your phone's web browser.
Then follow these instructions:
Top left corner you will see "USER CP" this is your control panel.
Click on "User CP".
You will see a tool bar on the left side of the page. First thing is Manage your jeep profile.
Click on it and edit away.
2000 Sahara, 3.5" Rubicon Express Lift, 1" spring spacer & 1" Body Lift, 33" or 35" BFG Mud tires, Front & Rear ARB, Rancho 9000 shocks, UCF Ultra High Belly Up