How to use text input for multiple text input controles in SAS VA?

[J_J_J]

Hi!
I have 5 characters and create a character parameter and assign it to a text input:
( ( 'parameter'p NotMissing ) AND ( 'character'n Contains UpCase('parameter'p ) ) ) OR
( ( 'parameter1'n NotMissing ) AND ( 'character1'n Contains UpCase( 'parameter1'n) ) ) OR
( ( 'parameter2'n NotMissing ) AND ( 'character1'n Contains UpCase( 'parameter2'n) ) ) OR
( ( 'parameter3'n NotMissing ) AND ( 'character1'n Contains UpCase( 'parameter3'n) ) ) OR
( ( 'parameter4'n NotMissing ) AND ( 'character1'n Contains UpCase( 'parameter4'n) ) )
But in this case one text input controle doesn't affect others text input controles

How to change it that user could add input to the first text input controle and then add the second input to the second text input controle so that it will narrow down the choices.
Example:

[Madelyn_SAS]

Which version is this?