There is also an option to copy an existing widget and reuse it. This is useful when you want to add another widget with the same appearance as an existing one. You can do that by hovering over the widget you would like to copy and clicking the copy icon which will appear at the top right corner of the widget.
The new copy of the widget will end up in the Clipboard from where you will be able to select it and drag it to the position where you want to place it.