app.project.item(index).layer(index).propertySpec.keyRoving(keyIndex)
Description
Returns true if the specified keyframe is roving. The first and last keyframe in a property cannot rove; if you
try to set roving forone of these, the operation is ignored, and keyRoving() continues to return false.
If the property value type is neither TwoD _SPATIAL nor ThreeD_SPATIAL, an exception is generated.
Parameters
keyIndex The index for the keyframe. An integer in the range [1..numKeys], as returned by the addKey or nearest -KeyIndex method.
Returns
Boolean.