Chevrolet Astra Brasil

What exactly are those buttons in front of the gear shifter for ? I see first one is cruise control, middle one looks like windows one but I don't get it why is there only one and for the third one I have no idea what it can be.

What exactly are those buttons in front of the gear shifter for ? I see first one is cruise control, middle one looks like windows one but I don't get it why is there only one and for the third one I have no idea what it can be.