API Reference > core-frontend > SelectionSet > SelectionMode SelectionMode Enumeration The mode for choosing elements with the SelectionTool extensions Members Name Value Description Replace 0 Identified elements replace the current selection set (use control key to add or remove) Add 1 Identified elements are added to the current selection set Remove 2 Identified elements are removed from the current selection set Defined in core/frontend/src/tools/SelectTool.ts Line 46 Last Updated: 20 June, 2023