Focusrite website says that the 2i4 doesn’t have enough in and outputs so there’s no need for the mix control, hence it’s not compatible with it. The only way to do that is to change it in the audio preferences in my DAW, which is strange because it doesn’t work. In Windows all I can change is the buffer length under focusrite audio control center. And in Windows audio devices there are o ly a selection of 16 bit with various sample rates.