Inline/HTML/text content

Interestingly i am looking into this too. I notice prettyPhoto script (assuming you are using that within this plugin) has a tutorial on how to do this and so i will read up and see. This plugin is only a wrapper so the tutorial should work: https://www.no-margin-for-errors.com/blog/2010/09/28/tutorial-opening-custom-content-in-prettyphoto/