The Inventory tab allows you to see the various warehouses and their inventory data. From here you can adjust the quantity (+ or -), transfer parts to a different location, enter inventory counts, or edit the reorder point.
You can sort items in the grid by clicking on the headings at the top of the grid. An up or down arrow (circled in red below) will appear signifying ascending or descending order. Click the heading again to change the direction.