In the hierarchy layout mode, connected child devices are given positions in a hierarchical (or tree like) pattern in relationship to their parent. You can modify the layout results by changing the following layout attributes:
Direction. This setting indicates the placement of the root device and the direction the children will be placed from the root device.
Alignment. This setting indicates the placement of the root (or parent) device in relationship to its children.
Level Spacing. This setting dictates the amount of space between the parent and child devices. Increase this value to provide more spacing between the parent and children devices.
Node Spacing. This setting dictates the amount of space between each child (or sibling) devices. Increase this value to create more space between sibling devices.
Straight Links. A flag that indicates whether the lines from the parent device to the children devices should be straight lines or routed (angled) lines.