Automatically "Select All" on Prompt Page?

Question in brief:
Does anyone know if there is a way to cause all the prompt values on a
Prompt Page to be selected by default, when the values are the result
of a query?

Question in brief:
Does anyone know if there is a way to cause all the prompt values on a Prompt Page to be selected by default, when the values are the result of a query?

Background:
I am using Insight 1.0.1.1 . I have a report for Test Suites. The Test Suites have several Categories defined, and each Category Term has multiple Category Values.

I am able to create a Prompt page, where each Category Term has its own List Box. The List Boxes are populated by queries against the Category Term. Each Prompt displays with a "Select All" and a "Deselect All" link underneath it.

This is all working correctly.

My users would like the values in the List Box to be all selected by default (as if they had pressed the "Select All" link). They want this because there are many prompts, and clicking "Select All" several times is tedious.

I would use a Range for each value, but the Category Values can be redefined with new ones added, so Ranges would only work if I could specify the Minimum as less than the lowest possible Category Value, and the Maximum as greater than the highest possible. It is not obvious how to do this, since the values are text.

I cannot use the other mechanisms for specifying default selections, because those mechanisms only permit static values. The Category Values could be changed, possibly causing the static values to become incorrect.

I would try to use Cascading Prompts, but these Category Values are all independent of each other. And besides, Cascading Prompts does not appear to include a hook to permit causing all the values to be selected.

Does anyone know if there is a way to cause all the prompt values to be selected by default, when the values are the result of a query?

So, when nothing is
selected then no filtering happens. Selecting noting in that cases has
therefore the same effect as selecting all in the parameter box.

See this IBM technote: http://www-01.ibm.com/support/docview.wss?uid=swg21339608