Open document in floating window
You can right-click on the node of the directory tree on the left, and click the Show in Floating Window menu item, then, the selected document will be displayed in a separate floating window.
![](/images/wonderpen/guides/float_win_01.en.png)
The floating window is shown as the following figure:
![](/images/wonderpen/guides/float_win_02.en.png)
You can open multiple floating windows at the same time, or even open a whiteboard for easy reference while writing:
![](/images/wonderpen/guides/float_win_03.en.png)