Please note that the PDF converter is not perfect, and adds weird characters / extra spaces which can ruin things. The JS file in the ZIP is probably a good place to check / compare.
Edit December 2019 : Upgraded Zip to 19c, edited a few spelling mistakes.
Edit May 2019 : Handles button display according to Screen property.
Edit December 2018 : Enabled Value Lists and Screen Lists, Date Time Attributes.
Edit November 2018 : Did a little more work. Fixed the delete button to both delete the instance from the Control and remove the row from the visuals. Added a basic project to the downloads.
Edit August 2018 : PDF file re-uploaded due to error.