OPTIONS region — the real venact component

This is the genuine OptionsEditor + ColumnMappingOption from venact-studio, running the real React code via the Fiddle bundle. Flip DEFINE ⇄ FILL on any row (they move together). In FILL, drag a dot across the gutter to map a column, use + to add an output column, click a name/expression to edit. It behaves exactly like the app because it is the app's component.