Enable or disable trigger while the file is in use.

It was 3+ years ago? that i wrote a trigger pgm(s) to a process.
It was a pita creating/removing triggers because the file was always in use.
Then i found you can enable/disable existing triggers while the file was in use.
At least i put some comments in a couple programs to that effect -
** You CANNOT Add or Remove triggers WHILE the file is in use **
** You may Disable or Enable triggers WHILE the file is in use **
And recently i've found i CANT enable/disable triggers while the file is in use.
Question: Am i losing it or did IBM change something?

1/2-afraid-of-the-answer-John.
Thanks for any help.


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...like using an oar to turn an oceanliner.