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The keyingGroup node is a special type of set. It is used to gather together animatable attributes. These attributes can then be animated and edited in unison.

KeyingGroup sets may only contain animatable attributes and other keying groups.

Objects within keying groups can be designated activator objects. When a key is set on an activator object, it triggers keyframing of the other objects within the keyingGroup.

Maya also maintains a global keyingGroup filter preference which can be used to globally enable/disable all keyingGroups or to specify particular keyingGroups to be active. The category attribute may be used to designate a filter-able keyingGroup type.

Node nameParentsClassificationMFn typeCompatible function sets

Attributes (3)

activators, category, minimizeRotation

Long name (short name)TypeDefaultFlags
activators (act) Messagen/aarrayoutputinputconnectable
Objects which activate this keying group
category (cat) stringNULLoutputinputconnectablestorable
Category name associated with this keying group. Will affect which keying groups get activated based on the (global) active filter
minimizeRotation (mr) boolfalseoutputinputstorable
Will minimize rotation whenever keys are set on rotation channels in this keying group It does not affect rotation channels contained by sub keyingGroup those channels will use the flag in their respective keyingGroup