How to activate the start-stop function in an Audi A1?

I recently bought an Audi A1 and noticed that my car has a start-stop function. How do I activate it and is it recommended to use it regularly? Thanks in advance for any insights!

To activate the start-stop function in an Audi A1, simply press the button located on the center console. It is recommended to use this function regularly, as it helps to reduce fuel consumption and emissions. However, it is not suitable for use in heavy traffic or on steep inclines.