Camera help with camera application

As all of you know that samsung introduced a new camera app with a4 4.2.2 android with modes in s4 mini there are only 10 modes available for us where as there are 19 modes in s4, I extracted our camera app & found all modes are included in the apk & not only the camera app in settings air view smart pause etc are also included in it but need to be activated, so my request is if some one can help me with the activation of this exclusive features we can enjoy s4 goodness in our s4 mini

please help me with the decompiling and recompiling of apks with odex files