Notice that the cursor is attached to the symbol's origin. To place multiple copies of the symbol, hold down the Ctrl key as you drag the symbol into the drawing. Each time you click the mouse button to place the symbol, another copy of the symbol appears. Right-click to stop the copying process. Once the symbol is placed, you can edit it in a number of ways.
Most symbols align automatically with other objects in the drawing.
Notice that you can do a horizontal or vertical mirror about the symbol's center. The rotation increment changes, depending on how close the cursor is to the symbol's origin.