Widget settings
To set up the widget, click on the three dots next to the name of the widget and select "Configure."

A window will appear for you to create a text to describe your web application. You can add hyperlinks and lists, change the font size and type, and select other text parameters.
You can also click the checkbox to display the information window when you first open the application.

Widget description
Find the widget icon that appears in the upper right corner of the map. Click on it to display a modal window with information about the map.