The cf_sebGroup tag has a few options (using the "type" attribute) for grouping fields in a form. All of them will adjust accordingly to table tags if the form is format="table".
This will wrap the fields in a "fieldset" tag.
This will put the value of the "label" attribute in a div with a class of "accordion-header" followed by body of the group tag in a div with a class of "accordion-body".
A type of "ColumnsTable" must be nested with one or more groups of type="Column" (and a type of "Column" must be nested inside a type of "ColumnsTable"). Use this combination to group fields horizontally.