internal override void OnEnable()
        {
            var numberOfMembers = serializedMembers.Count;

            if (numberOfMembers > 0)
            {
                DeclaringOrder         = serializedMembers[0].DeclaringOrder;
                m_accordion.IsExpanded = InspectorData.GetBool(IsExpandedPref);
            }
            var members = new List <SerializedMember>(serializedMembers);

            for (int i = 0; i < numberOfMembers; i++)
            {
                ProcessAttributes(members[i], typeof(TabAttribute));
            }

            if (tabGroup != null)
            {
                tabGroup.OnEnable();
            }
        }