There is a way to call a program that is already on the program stack. But it is not a recommended method since...
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it is resource intensive. It simply involves creating the program as an ILE program with the attribute of *NEW for activation group. Each call of the program will create a new activation group (the expensive part) but you can have a program call itself. I would not recommend this with anything that must do many calls before deciding to end. I've used this technique only to process program-references files that we rebuild nightly. A utility program we use will perform a implosion/explosion on a given programs usages (who calls it, the implosion, and what it calls, the explosion.)
Point is, this use of a program that calls itself by creating a new activation group won't be creating umpteen-zillion activations, only 5-6 on average, maybe as high as 10-15 to display the usages of some our programs. So there really isn't a lot of expense. 'Course it does help to have a max'd out 820 system.
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