Sorry for the late reply sir, it took time to search for the right answers. :D
Here are some options of the power, hold and sometimes has a normal mode switch:
Power - Holds onto gears longer as well as down gears at much lower throttle positions.
Normal - Leaves the transmission in ADAPTIVE SHIFT mode. This means the car will put it self into power mode when it senses you are really pushing the car.
Hold - When this option is selected, the driver can literally use the automatic gear stick like a manual. This means that when you have the selector set to 2nd gear, the car will stay in second gear and ONLY second gear. Of course the car will change gears if necessary to avoid stalling.