Below these instructions is a list of objects, as well as a base on which those objects are placed. Navigate to the object of your choosing, then press Enter to select it. After selection, the base is focused. The object can then be placed on it with another press of the Enter key. Navigate to an object on the base to remove it. Below the base a dynamic table is present. Navigate through the table to see how your selection affects the calculations. Good luck and have fun!