/**
* set the layout type and optionally the break type.
* This method is only supported on scripted fields via the UI Object API
*
* @param {string} type layout type: outside|startrow|midrow|endrow|normal
* @param {string} [breaktype] break type: startcol|startrow|none
* @return {nlobjField}
*
* @since 2008.2
*/