Copy the track attributes from IFROM to ITO. If one of the tracks is in the user's track section, only the basic attributes (see 8.1.1) are copied. Otherwise, all flags, relations, etc. are copied. See remarks about lock algorithm in sections 10.2.1 and 10.2.3.
QVCOPY should be used only if a specific track ITO has to be overwritten. Another copy routine which is protected against overwriting tracks is KVSAVE (9.2.9).