Advanced Part Modeling Features - Inventor 2013 and Inventor LT 2013 Essentials - page 157

FIGURE 7.4 A preview of the loft feature will appear after the
sketches are selected.
FIGURE 7.5 Patterning the entire solid
allows you to edit a smaller feature set.
Using the Engineer's Notebook
To assist others who might need to edit your models in the future, it can be helpful
to document the process or thinking behind a design. Inventor has a tool called
the Engineer's Notebook that enables you to capture comments or images of your
design at any time and keep them with the component for future reference.
1. Make certain that the 2013 Essentials project file is active, and then
open c07-04.ipt from the Parts\Chapter​7 folder.