Dock the navigator of LibreOffice
Usually, to dock the navigator of LibreOffice often fails, at least on my Linux system. A reliable method is to hold down the Ctrl
key and double-click on an empty area of the navigator.
The reference is here, even though it describes the method of undocking the navigator.
![](https://pic.cnblogs.com/avatar/777042/20180520165303.png)