You can dilate any subset of your diagram from a point. Here are the steps:
| 1. | Select  the geometry to be dilated. |
| 2. | Click the Dilation tool in the Construct toolbox, or select Dilation from the Construct menu. |
| 3. | Click the screen to place your dilation point. |
| 4. | In the data entry box presented, enter the dilation factor. |
The dilated geometry appears.
Notice all points on the dilated geometry are written as "prime", i.e. A becomes A'. If you dilate this geometry again, A' becomes A".