You can set key attributes in the following ways:

• The Animate menu has entries for setting and controlling keys.
• Path animation uses 3D curves to set the direction of animated objects.
• The Attribute Editor and Channel Box have menu items for setting keys for the attributes displayed.
• You can use keyboard hotkeys to set keys for transformation node attributes.
• You can use marking menus to edit keys.
• The Graph Editor lets you set and edit keys for existing animation.
• The Dope Sheet lets you set and edit keys for existing animation.