storybook/docs/configure/features-and-behavior.md

title
Features and behavior

To control the layout of Storybook’s UI you can use the setConfig addons API in your .storybook/manager.js:

<CodeSnippets paths={[ 'common/storybook-config-layout.js.mdx', ]} />

The following table details how to use the API values:

Name	Type	Description	Example Value
isFullscreen	Boolean	Show story component as full screen	false
showNav	Boolean	Display panel that shows a list of stories	true
showPanel	Boolean	Display panel that shows addon configurations	true
panelPosition	String/Object	Where to show the addon panel	bottom or right
enableShortcuts	Boolean	Enable/disable shortcuts	true
isToolshown	String	Show/hide tool bar	true
theme	Object	Storybook Theme, see next section	undefined
selectedPanel	String	Id to select an addon panel	my-panel
initialActive	String	Select the default active tab on Mobile	sidebar or canvas or addons
sidebar	Object	Sidebar options, see below	{ showRoots: false }

The following options are configurable under the sidebar namespace:

Name	Type	Description	Example Value
showRoots	Boolean	Display the top-level nodes as a "root" in the sidebar	false
collapsedRoots	Array	Set of root node IDs to visually collapse by default	['misc', 'other']
renderLabel	Function	Create a custom label for tree nodes; must return a ReactNode	(item) => <abbr title="...">{item.name}</abbr>