The simple answer is no. It's not the same process as knowing how to lay laminate flooring. This is effectively a floating floor that is placed on top of the current floor. The underlay is used to create a moisture barrier, reduce the noise and help keep the laminate in place.
Underlay is not needed on stairs as the laminate needs a solid surface to attach itself to. The laminate is directly glued and or nailed to the stairs to keep it in place.