private void updateSelectedGroup() {
        final Group selectedGroup = mSelectedGroupLiveData.getValue();
        if (selectedGroup != null) {
            mSelectedGroupLiveData.postValue(mMeshNetwork.getGroup(selectedGroup.getAddress()));
        }
    }
Generates the groups based on the addresses each models have subscribed to
app/src/main/java/no/nordicsemi/android/nrfmesh/viewmodels/NrfMeshRepository.java