How to select and capture I2S bus data on Android devices using Simulink support Package

Hi, I have downloaded, installed, and configured R2018a Simulink Suport Package for Android devices to run on a Samsung GS6 phone and I am able to run the Basic Parametric Audio Equalizer example successfully. One question I have is how to select an I2S bus and capture the audio data on it using the included Simulink blocks? Thanks.