Using the component library is preferred as the pads and component labels are already in place. Many components you use will not be in the component library. Another method of adding items to your board in a fairly easy manner is to use the footprint item.
Select the footprint icon.
Figure 9.7
In the same location you selected the Atmega chip, select the semiconductor TO263-3 (SMT). Drop one on the board.
Figure 9.8
If you prefer items arranged in a linear fashion whenever possible like I do, you can rotate the semiconductor footprint by clicking on the component image, right click, go down to Rotate and select either rotate left or rotate right.
Figure 9.9
