Most lists in Revit sort alphabetically, and some provide the ability for manual reorganization. Some lists in the Railings Type Properties, however, allow neither of these but are sorted in the order loaded into the Revit file. Specifically, in the "Edit Baluster Placement" sub-menu, the Baluster Family list (the red circles in the first image), and the Profiles list in the "Edit Rails (Non-Continuous)" sub-menu. Sifting through these is tedious on not-small projects. Please alphabetize these lists automatically as families are loaded into, as families are removed from, and as family and type names are modified in, the project.
"Edit Baluster Placement" menu
"Edit Rails (Non-Continuous)"