Editor compatibility
Wix Blocks apps aren't supported in the Wix Harmony editor. Existing Blocks apps remain available for purchase on the Wix App Market for Wix Editor and Wix Studio sites. To learn more, see About Wix Harmony and Blocks.
The widget installation settings let you configure what happens when a site builder installs your app. For example, should all widgets be visible in a site's Add panel? Should any of them be added automatically to a site? What will be the default preset?
There are two ways to access your widget's installation settings. First, make sure your widget is selected in the App Interface in Blocks.
There are several options for adding each of your widgets to a Wix site.
This is the default setting for Installation Settings. With this option, your widget is:
In this example, the app has two widgets, both are defined as Not added automatically, and therefore seen in the Add+ panel.

This option means that your widget is automatically added to the homepage of a site, without having to drag and drop it from the Add + panel.
You can also set the default preset for your widget and define a different default preset for mobile.
Use this option when you want your widget to appear on a different Site Page Extension of your app. A site page extension means that whenever your app is installed of a site, another page comes with it.
To add the widget to a page extension:
Note: The Page ID value becomes part of the URL for the new page that this widget is installed on. This is so it can be used in code as a unique URL. You'll use this if you want to navigate to the page from your app.
Use this option when you want your widget to appear as a popup.
Note: The terms popup and lightbox refer to the same element. While the editor and dashboard now refer to it as a popup, the API methods continue to use the term lightbox for backward compatibility. The documentation uses both terms accordingly.
To add the widget as a popup:
Note: The Page ID value becomes part of the URL for the popup this widget is installed on. This is so it can be used in code as a unique URL. You'll use this if you want to navigate to the popup from your app.
openLightbox() To open the popup from the app code, use the wix-application openLightbox() function.
The preset images section lets you define what widgets and presets appear in a user's Add + and Preset panels.
Control the widgets users see in their App Widgets list in the Add + panel. For example, if you have inner widgets that are already included within another widget, you'll need to hide them from the Add panel. You can define Add panel visibility for each design preset separately.


The Preset
panel is where users can choose between the various presets of a widget. This option lets you determine which presets should appear in the Change Preset panel.

When users browse through the design presets of your widget in their Add or Preset panels, they see a thumbnail image of the presets. We recommend that you upload your own images, to make sure that they represent the design and functionality of your widgets. If you started building from a Blocks template, this is crucial, or else your thumbnail images will be the template's images.
Click Choose Image to upload your images. Make sure to follow our UX guidelines for these images.
Select Use a different preset for mobile if you want a different preset to show on users' mobile view.
Set a widget as essential to your app if it is a main widget and your app has no meaning without it.
Note that you can set a widget as essential only if you add it to a page or a page as a popup. You cannot set it as essential if you add it automatically or to your homepage.
With this toggle on:
Reminder Installation settings only apply for the first install on a site. This means that if your app is already installed on a site, the settings won't be updated unless the user removes and reinstalls the app.