The copy tool allows you to clone elements of your project's geometry.
Use the select tool to select the geometry that you wish to copy.
You can select individual (or multiple) control points/lines, or draw around entire geometric elements.
Select the copy tool or use the Y keyboard shortcut.
Click anywhere on the map to copy the element.
Move your cursor to the location that you wish to place your cloned element.
Click to place the cloned element at that location.
You can repeat step 5 to paste multiple copies on your map.