A target object’s weight specifies how much the position of the constrained pole vector can be influenced by a target object. The weights are attributes of the pole vector constraint. For each target object, an attribute named targetObject Wn is included that specifies the weight of each target object. By default, the weights are set to 1, which gives each target object an equal influence over the constrained pole vector’s end position. However, you can change the weights so that some target objects can have more (or less) influence than others. You can change target object weights with the Channel Box or the Attribute Editor.
To change target object weights for pole vector constraints with the Attribute Editor