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Base on my assumption only, you could be referring to the configuration of Configurable List widget that allows setting of specific column/field only to be *required. You can do this in the widget.
Check how to on the user guide: -How-to-Set-Up-the-Configurable-List-WidgetSet a Field or Input as 'Required'In most forms, some fields should not be skipped, like names and email fields. To prevent the form user from skipping these non-optional fields, you need to set the field as 'required'To complete this setting, all you need to do is add an asterisk (*) before the field configuration as shown below:Your form users will only be allowed to submit the form if those fields are completed:
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