In the right sidebar, under the Structure tab, you’ll see a nested view of all elements on the currently selected screen. This lets you review the structure and hierarchy of your elements. Any element selected on the canvas will be highlighted with a blue stroke in the structure pane, and likewise, selecting an element in the structure pane will highlight it on the canvas.
In this menu, you can double-click any element to rename it. You can also hover over an element to reveal options for duplicating or deleting it directly from the structure pane.