Apple Motion 2 - Manual (Page 195)

Chapter 2 Creating and Managing Projects 195
Any layer can contain multiple objects nested inside it. A layer can also contain other
layers nested inside it. In this way, you can construct complex hierarchies of nested
layers and objects, with each nested group of objects subordinate to the layer that
contains it, and that nested layer subordinate to the layer that contains it, up until the
topmost layer.
One of the goals of organizing the objects and layers in a project is to group objects
that you want to work together as a unit. This is because animation and effects that are
applied to the topmost layer in a hierarchy of layers and objects also affect all objects
nested within that hierarchy. By nesting a group of objects that you want to animate
together inside a single layer, you can save time by animating just the enclosing layer,
instead of animating each object individually.
For example, when you select a layer that has three objects nested within it, the entire
group of objects is selected as a single unit.
Nested layers
Enclosing layer
01112.book Page 195 Sunday, March 13, 2005 10:36 PM