API Reference > presentation-frontend > UnifiedSelection > SelectionHandler > addToSelection addToSelection Method Add to selection. addToSelection(keys: Keys, level: number = 0): void Parameter Type Description keys Keys The keys to add to selection. level number Level of the selection. Returns - void Defined in presentation/frontend/src/presentation-frontend/selection/SelectionHandler.ts Line 127 Last Updated: 11 June, 2024