9

Viewing and Select ing Hierarchies 425
is that you can control the view by collapsing
and expanding branches of the hierarchy.
Displaying the hierarchy in the Controller list
A square icon with a plus indicates a collapsed
branch under that object, while a minus
indicates an expanded branch. Click a plus icon
to expand a branch, or a minus icon to collapse
it.
Tip: In complex scenes, use Curve Editor to
navigate quickly through the Track View.
Simply select the object in the viewport, then
right-click and cho o se Curve Editor. The Track
View — Curve Editor will appear with the
selected object at the top of the w indow.
•YoucanalsouseSchematic View (page 3–640)
to view hierarchies. In addition to showing you
the structure, Schematic View contains tools
for manipulating hierarchies.
Selecting Hierarchy Members: Ancestors
and Descendants
Once you have selected one or more objects in
a hierarchy, you can select its direct ancestor or
descendant with the
Pag e Up and Pa ge D own
keys.
•
Page Up deselects the object and selects the
object’s paren t.
•
Page D own deselects the object and selects all
its immediate children, but not all descendants
down the chain.
Tip: These navigation commands are particularly
useful when setti ng joint parameters for inverse
kinematics.
To select an object and all of its descendants, you
can:
• Double-click the object in a viewport.
• Double-click the object icon in the Track V iew
Hierarchy list (page 2–512).
Selecting Hierar chy M embers:
Siblings
Available in Customize User Interface (page
3–792) are the actions Select Sibling - Next and
Select Sibling - Previous, which you can assign
as hotk eys, toolbar buttons, etc. We recommend
assigning them to the cursor keys
Right Arrow
and Lef t Arrow ,respectively;bydefault,those
keys are not assigned keyboard shortcuts.
Using one of these commands replaces the
currentselectionwithoneobjectonlyatthe
same hierarchical level. More precisely, a sibling
is defined in this context as an object of equal
generational distance f rom the selected object’s
near est parent. All objects that fit this definition
are siblings, so that in asymmetrical hierarchies,
object A can b e a sibling of object B, but the reverse
is not necessarily the c ase.