>Naomi:
>
>I'm aware that I can use a flag or remove the rule temporarily, BUT that means that I have to remember to execute something before doing a MODI STRU, and I could concievable forget. It would be better if there was somehow a way that the procedure could know that it is in the middle of a MODI STRU operation.

I've made a quick test and I think you can use ASTACKINFO() function inside your procedure.