If i understand you correctly you want to prompt for ‘Y’, ‘N’ and to prompt for all rows that are either ‘Y’ or ‘N’. If so then use in list operator. User can enter values of ‘Y’, ‘N’ or ‘Y;N’ - that is a single Y or N or both Y and N separated by a semicolon.
Thanks for your comments. Al, if I could get your suggestion of using a semicolon to work then I would be ber happy, however, I cannot seem to get Y;N as an option in the llist. Perhaps I am doing something wrong