5. Click the Add button. Navigate to the location of the file Woolworth.stl.
Select this file and click Open. Now you should see both the Flatiron
Building and the Woolworth Building models in your virtual build space.
6. Now you can decrease the size of both models at once. Click on the
Flatiron Building to select it. Hold down the shift key and click on the
Woolworth Building. Now release the shift key. Both files should be se-
7. Select the Scale button. Click and drag to change the size of both mod-
els, as shown in Figure 6-29 .
Figure 6-29. Scaling the Flatiron and Woolworth buildings