void _EffectorField(string effectorName, ref FullBodyIK.Effector effector)
        {
            var fbik           = this.target as FullBodyIKBehaviourBase;
            var editorSettings = fbik.fullBodyIK.editorSettings;

            if (effector == null)
            {
                return;
            }

            GUILayout.BeginHorizontal();
            GUILayout.Label(effectorName, GUILayout.Width(effectorNameFieldSize));
            GUILayout.FlexibleSpace();

            if (editorSettings.isShowEffectorTransform)
            {
                EditorUtil.GUI.ObjectField(fbik, "", ref effector.transform, true, GUILayout.Height(18.0f));
            }
            else
            {
                float labelSpace = 24.0f;

                EditorGUILayout.LabelField("Pos", GUILayout.Width(labelSpace));
                EditorUtil.GUI.ToggleLegacy(fbik, "", ref effector.positionEnabled);
                EditorUtil.GUI.PushEnabled(effector.positionEnabled);
                EditorUtil.GUI.HorizonalSlider(fbik, ref effector.positionWeight, 0.0f, 1.0f, GUILayout.ExpandWidth(false), GUILayout.Width(30.0f));
                EditorUtil.GUI.PushEnabled(effector.pullContained);
                EditorGUILayout.LabelField("Pull", GUILayout.Width(labelSpace));
                EditorUtil.GUI.HorizonalSlider(fbik, ref effector.pull, 0.0f, 1.0f, GUILayout.ExpandWidth(false), GUILayout.MinWidth(30.0f));
                EditorUtil.GUI.PopEnabled();
                EditorUtil.GUI.PopEnabled();

                EditorUtil.GUI.PushEnabled(effector.rotationContained);
                EditorGUILayout.LabelField("Rot", GUILayout.Width(labelSpace));
                EditorUtil.GUI.ToggleLegacy(fbik, "", ref effector.rotationEnabled);
                EditorUtil.GUI.PushEnabled(effector.rotationEnabled);
                EditorUtil.GUI.HorizonalSlider(fbik, ref effector.rotationWeight, 0.0f, 1.0f, GUILayout.ExpandWidth(false), GUILayout.Width(30.0f));
                EditorUtil.GUI.PopEnabled();
                EditorUtil.GUI.PopEnabled();
            }
            GUILayout.EndHorizontal();
        }