Rendering a list in a SuiteLet, adding a checkbox column such: list.addColumn({ id: "custrecord_csc_islocked", type: ui.FieldType.CHECKBOX, label: "Is Locked" }); I see this message when I run the SuiteLet: "message": "You have entered an invalid type argument: CHECKBOX", Looking at list.addColumn in the help it clearly states : "Note CHECKBOX field types are not supported." I've heard people talk about using checkboxes in lists and wondering, how do you add a checkbox in a list???