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This video tutorial demonstrates how to create required fields for snippets. Starting with a text field, a name is needed to check its contents for errors. The snippet will display a warning message if the field is left blank. The current version allows the snippet to be inserted despite the warning, but using the block setting can make the field required. For a drop-down menu, setting the first option as "please choose" and making it default ensures an error message if the selection is not made.
