Text Area in the Configuration

We can add the string field to the configuration record. But it can afford only a limited number of characters, which is 300. If we want to enter a larger number of characters, which is above 300, then we can use the Text Area. A text area that can hold a maximum of 4000 characters. There is a limitation; we cannot add space or white space in the messages, and messages containing more than 4000 characters will not be supported.

code used to add Text Area in Configuration record:

{
    "type": "object",
    "properties": {

        "Dashboard.Importantupdate": {
            "group": "extensions",
            "subtab": "Dashboard_subtab",
            "type": "string",
            "nsType":"textArea",
            "title": "Important Update",
            "description": "Enter the message",
            "default": "We can update the message by changing the field Important update in configuration field"
        }
    }
}