1. From the Home tabin Setup, enter App in the Quick Find box, then select App Manager.
2. To edit or add a utility bar to an existing app, click Edit in the drop-down menu next to your app. To create a Lightning app with a utility bar, clickNew Lightning App.
3. Click the Utility Bar tab and add the utilities you want.Specify component and utility properties, like the height and width of the utility panel, and what label and icon to display in the utility bar. Some utilities have properties that can’t be changed.Tip A Lightning page region can contain up to 25 components.We recommend adding no more than 10 utilities, and that you keep the utility labels short and sweet. You want your users to quickly find the tools and processes they need most.