Do you mean push button climate control?
There are three types of heating controls.
Basic version, rotary dials but manual selection.
Rotary dials, but automatic fan and temperature control.
Push button climate control.
In reality the push button controller does the same job as the electronic rotary controls, but the a/c button is integrated and the airflow direction is eletronic, not cable driven.
No S1 Xm should display the trim level on the boot. S2 cars do display the trim level there.