Custom change with A Project

I have found an android project on github concerning an indoor positioning system.However there is a small change i would like to make and was wondering if anyone could help me with it. Here are the main steps in using the app.

1.Open the App 2.A map appears 3.Click on the submenu button 4.Touch button scan 5. MAKE SURE TO HAVE AT LEAST 3 ACCESS POINTS IN YOUR SURROUNDINGS 6.After that touch any position on the map, a pointer appears 7.Click on the submenu button, do scan, it will scan your position 8.Change your location and Repeat 6&7 9.Press back 10.The app will approximate your position. 11. ****BUT WHEN YOU EXIT THE APP, YOU HAVE TO GO THROUGH STEPS 3/4/5/6/7/8/9 AGAIN WHEN YOU USE IT AGAIN. THE DETAILS ARE STORED IN THE DB BUT FOR UNKNOWN REASON WHEN YOU EXIT AND OPEN AGAIN IT DOESN'T APPROXIMATE YOUR POSITION, YOU SHOULD RE-CALIBRATE****