Summary: Original title, "Why a knob cannot turn to a button control (multi toggle button or sequential button)"
If the MDP sees that there are less than 8 values for a knob ESPECIALLY NAMED TICKs, we should be able to change the type of control to button. You’d turn the KNOB to a BUTTON and each button press would advance to the next value and TICK would be shown. Many hardware work this way especially if manufacturer wants to save a knob and replace it with a sequential button.