TreeView for WinForms provides design-time support that allows you to access collection editors right from the form. To know more about collection editors, refer to Collection Editors.
The smart tag for TreeView enables you to quickly access common C1TreeView Tasks involved with building TreeView elements.
You can access the context menu by right-clicking on the TreeView control at design-time. The context menu, just like smart tag, provides shortcuts to access collection editors right from the design form.