Retrieving and displaying records by non-indexed fields on Quick screens

[roger32909 at bellsouth.net]

Restrictions:  PH 7.10G on OpenVMS with no relational database, only RMS files.  The project manager declined request for additional indexes.

The requirement is to allow user to retrieve and display records by at least 5 fields.  Three are indexed and can be handled by normal ACCESS statements with default PATHs & FINDs.  But the fourth is a date range and the fifth is a non-indexed field.
The primary file will occur 15 times and the user may drill down by using a designer procedure 01 to run a screen displaying more details.

This system already has 2 screens with multiple prompts and a convoluted SELECT statement, custom PATH & FIND procedures to handle screen displays of data retrieved on non-indexed fields.  Of course there is no sort/order, but it works.  A new screen is supposed to follow this pattern.  But I wonder if there may be a simpler solution.

For example, I have seen (and used) permanent indexed subfiles (re-filled by QTP or QUIZ) to sort & display records on QUICK screens retrieved on non-indexed fields. The tradeoff is a slight delay for the QTP/QUIZ run.

I have not tried, but assume one could also declare several versions of the same file using aliases with ACCESS/SELECT statements and passing the retrieved data to occurring TEMPs for screen display.

Would like to hear of other possible solutions to similar requirements.