Automatic delete of instances from user inbox

This is for BOEXI R3.0.

If I set a report destination of a useru2019s inbox and select "Clean up

instance after scheduling", I understand that the instance is deleted

from the Output FRS when itu2019s send to the user's inbox.

Now, I want to automatically/programmatically control the number of

instances in the user inboxes, so that they just have the most up to

date instance of the report.

I thought this could be controlled by Setting instance limits for an

object (P. 738 of the R3.0 Admin Guide)

But it seems not...

I found "1199505 - How to periodically clean up inboxes in Enterprise XI"

Itu2019s for BOXI R2 and tells me:

"The inboxes are not like the regular BusinessObjects Enterprise XI

folders where there is a setting that can be configured. A utility can

be created using the SDK that examines the size of items in inboxes and

cleans them appropriately."

Is this still true for BOIX R3.x ? Do you know of any utility that

anyone has written? It seems to me that this must be likely to have

come up before.

Is there any way to automate clean up/deleteof instances from a users

inbox?

Thanks

Jim