Hi, i'm new to Mac and im just learning all the features. I bought the 15" mid macbook pro and this laptop is awesome. However, i accidentally deleted the last 2 icons next to the trash icon. I know that you can retrieve icons by going to the application and dragging them to the dock. But the last 2 icons i believe is something different. I forgot the name of the icons as well but i know it has something to do with recent activities or some sort. Can somebody help me retrieve them. Thanks.