For anyone planning their 2024 calendars, I happened to see this on Facebook the other day.  

Our application has a ZEN report that accepts a sorting parameter and a fundraiser parameter.  Sorting tells us which order the pages are to be in and the fundraiser limits the data shown  (e.g. which user has requested the report)

/// the passed in fundraiser parameter
Property fundraiser As %ZEN.Datatype.string(ZENURL = "FID");

Property SortOrder As %ZEN.Datatype.string(ZENURL = "SORTME") [ InitialExpression = "WorkId" ];

/// This XML defines the logical contents of this report.
XData ReportDefinition [ XMLNamespace = "http://www.intersystems.

Salesrep is the production file with only an index on the idkey (it has more properties than shown here).

Property SalesRepId As %String(MVATTRIBUTE = 0, MVJUSTIFICATION = "L", MVWIDTH = 10) [ Required ];

Property Surname As %String(MVATTRIBUTE = 2, MVJUSTIFICATION = "L", MVWIDTH = 25);

Property Forename As %String(MVATTRIBUTE = 3, MVJUSTIFICATION = "L", MVWIDTH = 25);
. . .