To create a camera using ACT:
As you create a model in 3D, you need to view it from all sides. In SketchUp, you orbit, zoom, and pan all the time as you draw:
In LayOut, you can change the view of your model or its style settings right within the model entity. This timesaving feature enables you to make adjustments without endlessly switching back and forth between the SketchUp and LayOut applications, or having to redo even more complex processes that other presentation programs require so that your model presentation stays up to date.