Over the VLA history of more than 25 years, many individuals have contributed to this document by writing sections, editing previous versions, commenting on draft material, and implementing the capabilities described herein. We thank all these contributors for their efforts. The listed editors of the present version of this document are the editors of the most recent versions, and thus are the best individuals for readers to contact if they should have questions on the material, or suggestions that would enhance the clarity of this guide.