The sidebar is used to show nodes like a tree or show the related documents, tags, clipboard and saved searches.
You can hide/show the sidebar in two ways:
Click
to open the Preferences.
Deselect the Show Sidebar checkbox, then click Save to accept your changes.
To show the sidebar, tick the Show Sidebar checkbox in the Preferences form.
Simply click
to hide the sidebar as the illustration below.
The drive will be displayed like the illustration below.
Click
to show the sidebar.