Update old OpenOffice / LibreOffice extension so that it will work with Version 5.3

Hello Freelancer's, I've attached an old OpenOffice / LibreOffice extension that is not compatible with the current version of LibreOffice. Source of extension: [login to view URL] The purpose of this extension was to allow images to automatically be inserted onto documents during a mail merge. I still need this functionality. I still need the ability to add images to documents during the mail merge / printing process. Please update the attached extension so that it will work with LibreOffice Version 5.3.