The Operator Stack provides access to two different suites of tools for working with Motion Design projects, Modifiers and Animators.
The Modifiers include a variety of tools for working with both 2D and 3D projects, including modifying layouts, geometry, and rendering, as well as a modifier to assist with using transition logic.
The Animators include tools to animate your designs without entirely relying on keyframing, using a variety of customizable animation presets.
Where to Find the Tools
You can access the Operator Stack in two ways after you activate Motion Design Mode.
Click Operator Stack on the left of the main Motion Design toolbar:
Open it from the Window menu:
Operator Stack Window
After opening the Operator Stack, a window appears in your interface that resembles the following image:
The tab on the left in the Operator Stack window is for working with modifiers. The tab on the right is for working with animators.
For more information about modifiers and animators, see the respective pages:
Modifiers
All about Modifiers for use in your Motion Design projects.
Animators
All about Animators for use in your Motion Design projects.