A switching system may include a body and a set of key elements. The body may be electrically connectable to a first electrical device and a second electrical device, and may have a keypad with key element attachment features to which the key elements can be attached. The key elements may be attachable in various positions and/or combinations on the keypad. The key elements may include one or more buttons of various sizes and/or a rocker. The keypad may have multiple positions to which key elements can be attached, with larger key elements requiring multiple positions. The key element attachment features may be domes, which may be inserted into holes in tabs extending from the key elements to pivotably attach the key elements to the keypad. Each key element may be retained on the keypad independently of any other component aside from the keypad and the key element.