https://download.eclipse.org/nattable/releases/2.4.0/apidocs/org/eclipse/nebula/widgets/nattable/group/performance/action/ColumnGroupHeaderReorderDragMode.html
ColumnGroupHeaderReorderDragMode (Nebula NatTable 2.4.0-SNAPSHOT API)
declaration: package: org.eclipse.nebula.widgets.nattable.group.performance.action, class: ColumnGroupHeaderReorderDragMode
nebulanattablesnapshotapi