API Reference > presentation-frontend > UnifiedSelection > SelectionManager > addToSelection addToSelection Method Add keys to the selection addToSelection(source: string, imodel: IModelConnection, keys: Keys, level: number = 0, rulesetId?: string): void Parameter Type Description source string Name of the selection source imodel IModelConnection iModel associated with the selection keys Keys Keys to add level number Selection level (see Selection levels) rulesetId string ID of the ruleset in case the selection was changed from a rules-driven control Returns - void Defined in presentation/frontend/src/selection/SelectionManager.ts Line 153 Last Updated: 13 June, 2024