Working with Animations > Editing Animations > About Editing Animations
  
About Editing Animations
In Creo View, you can edit an animation using these methods:
Add or remove tracks or keys
Modify tracks
Drag
Lock or unlock
Place in a container track
Reverse
Mirror
Merge
Split
Stretch
Modify keys
Edit properties
Drag
Duplicate
Cut
Copy
Paste
Change mode
Delete
You can find these tools in the Keyframe Editor and on the shortcut menu. You can also access the tools from the Track Tools and Key Tools tabs of the Ribbon.