I did "Upload File" in the Files > Pronto Professional > ProntoScripts page. Hope that was the right place. Then, I replied to the resulting email with the file com.randman.dune.zip, which contains a ProntoScript file that I used for communicating with Dune. I used it with three of the Dune HD Smart D1 Media Players. I haven't used it in a while though (maybe since mid to late 2010's), but worked well for me back then.