'All' Option in Web-I Prompt - LoV

How to create 'ALL' in Parameter List of values? I want to display it in the begining of LoV.
I have 500 +List of values for some parameter. User can add all the list of values at once by clicking CTR+A. I am not looking for this option.
I am looking  for 'ALL' value option in the lov and if the users selects that the report should run for all values.
I created the 'ALL' LoV by customizing the Object Lov SQL (Union from dual). I can see that 'ALL' value on the web-I report prompt. But that 'ALL' value is not referencing to any database values. So, I get a blank report. I think I am half way ... Please help!
ShamanthAsked:
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Accpac_AttackCommented:
You just add the "ALL" value to the list.  In your record selection formula, you do something like
If {parameter.value} = "ALL" Then True Else [Field.Value] = {parameter.value}

Good luck!
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ShamanthAuthor Commented:
I am talking about Web-I not Crystal
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ShamanthAuthor Commented:
I am closing the question. No use ...
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