Original sentence: Depending on the selected vehicle, the four buttons on the right enable the user to perform functions like lifting cranes, turning on a siren, or unloading a truck bed.On the center of each control pad is a button in which the player presses to cycle through available units and vehicles that can be controlled (up to 8).Only the shoulder buttons and the Control Pad can be used on all vehicles.The Rokenbok vehicles are controlled through up to four control pads.The control pad, similar in design to a video game controller, has 10 possible commands.The control pads consist of three sections, the left contains the directional pads that control the movement of the vehicles.The user-operated controls are as follows: a "Control Pad", or D-Pad, which has four directions: Up, Down, Left, and Right.There are also two shoulder buttons.There are four special function buttons: A, B, X, and Y
Edited sentence: Above each handle, at the top of the control pad, are two shoulder buttons.On the center of each control pad is a button which the player presses to cycle through available units and vehicles that can be controlled (up to 8, chosen by setting a LED light on a number 1-8, presented in a circular fashion, each corresponding to the numbered radio keys in each vehicle).On the right section, there are four special function buttons: A, B, X, and Y.The D-pad and shoulder buttons provide the same function for each vehicle.The Rokenbok vehicles, crane, and elevator are controlled through up to four control pads.The control pads, which are similar in design to a video game control pad, consist of three sections, the left contains the four-way directional pad, or D-pad, that controls the movement of the vehicles