pq13758.st  ABTCOMPOUNDTYPE DOES NOT UNDERSTAND 
                ABTPARTBUILDERCHANGENAMEOPERATION

On a non-visual part drop a Cics proc dialog, then Open settings and parse any 
copybook .  Now tear off and change the name of this new part by alt/left mouse 
click and you get a walkback.

File in pq13758.st after applying fixpack v4.02b to fix the problem.
Note: This has been fixed in v4.5