docs/versioned_docs/version-2.5.0/app-builder/toolbar.md
Topbar is present at the top of the app-builder, and is used to configure the app settings.
<div style={{textAlign: 'center'}}> </div>App name can be edited from the left side of the topbar next to the ToolJet logo.
When a new app is created, by default its name is set to Untitled app
<div style={{textAlign: 'center'}}> </div>To configure the app's global settings, click on the kebab menu(three vertical dots) on the left of the app name. Global settings include:
Switch the canvas mode in Mobile or Desktop layout from the topbar.
Click on the component handle to open component config inspector on the right side. Scroll down to the Layout section and enable Mobile Layout. The width of the widget will be adjusted to fit the Mobile Layout.
Switch the layout to mobile by clicking the button on the topbar. Drag and drop a component to the canvas. This widget will not be shown on desktop layout unless Show on desktop is enabled from the component config inspector.
:::info Width of the component will be automatically adjusted to fit the screen while viewing the application in app viewer. :::
<div style={{textAlign: 'center'}}> </div>Use the undo or redo buttons from the topbar to undo or redo any change on the canvas.
You can also Keyboard Shortcuts to perform such actions.
<div style={{textAlign: 'center'}}> </div>Create or Remove Versions of the applications from the Version Manager. You can also edit the version name from the edit button.
When many developers are working on an app, Versioning allows them to save their own version of the app. This also prevents developers from overwriting the other developer's work.
<div style={{textAlign: 'center'}}> </div>Comment anywhere on the canvas and collaborate with other users in the workspace. Click on the comments button to enable it and then drop comment anywhere on the canvas.
<div style={{textAlign: 'center'}}> </div>Share your applications with a unique URL generated automatically or edit the URL slug to personalize it.
Clicking on Preview button will open up the currently opened version of the app in the new tab. This is really handy when the app developer wants to immediately check the app preview in production.
<div style={{textAlign: 'center'}}> </div>Release the app to publish the current version of the app and push the changes into the production.
:::caution ToolJet will block editing of the Released version of an app and will display a prompt to create a new version to make the changes. This is to prevent accidentally pushing an unfinished app to the live version. :::
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