https://smartclient.com/smartgwt-latest/javadoc/com/smartgwt/logicalstructure/widgets/grid/RowRangeDisplayLogicalStructure.html
RowRangeDisplayLogicalStructure (Smart GWT LGPL Edition API 15.0d (2026-05-09))
declaration: package: com.smartgwt.logicalstructure.widgets.grid, class: RowRangeDisplayLogicalStructure
smartgwtlgpledition