Apart moves nodes further apart. This spreads the nodes further apart. Zoom is used to zoom in or out around the center of the display. In magnifies the image. Zoom Out reduces the image.
Fit redraws the display at full scale to fit the draw- ing area.
Options Colors allows the choice of a rainbow, pastel, or gray scale color scheme. Directed controls whether links are displayed as arrows to denote the direction of the link. The beginning of the arrow is the first node defined for the link. Labels controls whether nodes should always be labeled. Graphics Buffering controls whether buffering should be used so that the display update happens all at once rather than as the screen is redrawn.