Change line options when you want to adjust how the system presents the lines that connect different objects within a hierarchical structure. For example, you can adjust the line style, straight versus diagonal, the thickness of the line, and so on.
To change line options, proceed as follows.
The Line Options dialog box appears.
For more information on the settings, see The Line Options Dialog Box
– Click anywhere on the next window you want to work with.
– Repeat steps #3 to #4.