Shown in Video:
Using the Edit tool (bottom of the right toolbar) allows you to quickly and easily make edits to the drawing. As shown in the video, you can quickly extend two lines until they connect, trim off a small overhanging line, or even make a number of copies of an object using an Array.
These tools help save time and can make you even more efficient using ArcSite. The Edit tool allows for more streamlined and more intuitive ways of cleaning up your drawing.