Initially add sublist with list type in suitelet const sublist = form.addSublist({ id: ‘custpage_details’, label: ‘Details’, type: serverWidget.SublistType.LIST }); Then add mark all & unmark all button in sublist sublist.addMarkAllButtons(); Now add a checkbox field in sublist for checking and unchecking the checkbox sublist.addField({ id: ‘sublistcheckbox’, label: ‘Check’, type: serverWidget.FieldType.CHECKBOX… Continue reading Add Mark all & Unmark all button in suitelet page