https://community.adobe.com/questions-558/change-collection-group-sort-order-175142
Change Collection Group Sort Order | Community
How do I change the order of collections listed in the Collections tab? The only thing I can come up with is to change the name of the collection. But e...
change collectiongroup sortordercommunity
https://developers.arcgis.com/qt/cpp/sample-code/statistical-query-group-sort/
Statistical query (group & sort) | ArcGIS Maps SDK for Qt | Esri Developer
group sortstatisticalqueryarcgis