Using User Defined Lookup with the Time Entry User Value 1 Field

When configuring the Timesheet Options, the browse window for selecting a lookup on the User Value 1 field only shows a choice of one lookup definition and that is the definition for the stock ‘Time Entry User Value 1’ Static Lookup. We want to develop our own user-defined dynamic query lookup for use on this field.

How can we get this to work properly?  Are there any special requirements or configuration considerations that should be reviewed in understanding this functionality for using a custom Time Entry User Value 1 dynamic query lookup?

The use of a custom, dynamic lookup on the Timesheet Entry is available with specific requirements and special considerations for storing and displaying data for this field.  It is recommended that you use the stock, ‘Time Entry User Value 1’ Static Lookup if possible.