The changes in effect as a result of the SET PROFILE command
remain in effect for the current QMF session. To save these changes in your
profile, use the SAVE PROFILE command after you enter SET PROFILE.
To change values in the QMF profile without using the SET PROFILE command,
enter SHOW PROFILE and change any options on the profile panel.
A trace function level specification of L traces either of the following:
messages (L1)
messages and QMF commands (L2)
Trace level L can help you find
errors in batch-mode procedures.