General :: How To Transfer System Settings And Apps

Me and a friend are trying to port a system app from the same phone but two different roms. Here's the situation. The phone is zopo zp998 and it comes with regular Android 4.2.2. Zopo is making the exact same phone for the Chinese market with on OS based on Android 4.2.2 that's called YunOS and it doesn't have Google account support so it's not usable outside China.

The YunOS has a black screen gesture feature that you can activate in the settings under display and then while the screen is Black you can make symbols on it with your finger and open specific apps. For instance if you draw the letter C the dialer will open.

My friend was able to find the system app for the gestures in YunOS and all its library files and put it in his rom. When the phone boots we can see that the gestures service is running fine but we don't have the option in the settings to activate the app. we can use on how to transfer a system setting and app like this? Is there another app we can use to trigger the on and off of the app?