Control the scale of the selected bone. By default the scale coordinates are controllable in the AnimGraph. With the Scale Mode property you can set the node to Ignore the modifications made by the node, retaining any existing scale on the bone, Replace Existing to replace any scale on the bone with the scale the node is performing, and Add to Existing which will add the Transform Bone's scale to any existing scale on the bone. World Space: Applies the scale based on the absolute position in world space. Component Space: Applies the scale based on the bones position in relation to the Skeletal Mesh's reference frame. Parent Bone Space: Applies the scale based on the bones position in relation to its parent bone. Bone Space: Applies the scale based on the bone's own reference frame.