currently the new supersede link (10.2) does not show up in the link constraint window in type manager
constraints should be supported to define which object type can be supersede by which. this is intended because several wtpart types are used which do not mean the same like upper/lower structure. without a constraint a material master can be superseded by any other wtpart softtype which can be for example a structural node.
Users should not need to define type pior searching which reduces errors and usability