A number of graph layout preferences can be set for any tool that uses graphs. You can control settings in the Preferences dialog. To do this:
For example, the graph layout preferences for subclasses in the Class Browser are shown in Layout Preferences for the Subclass Graph.
Figure 6.5 Layout Preferences for the Subclass Graph
This section describes the options available in the graph layout tabs of the Preference dialogs for any tool that uses graphs.
LispWorks IDE User Guide (Macintosh version) - 25 Nov 2011