I am 100% new to Affinity Publisher, and I'm having problems running the Peter Kahrel script to automate converting my InDesign files to IDML format. Using my Macbook running High Sierra, I have downloaded and placed the "jsx" script in the Scripts Panel folder. I am using InDesign CS5.5 and need to convert approximately 100 files. When I then double click the file within the Extended Toolkit window, I get a text listing of the script, it does not run. When I attempt to run it, I get the following error, "Cannot execute script in target engine 'main' (#1116) Can't start debug session." I do not have any experience with scripts and have just tried following instructions that I have found online. Can someone suggest a step by step plan that I can follow to get this to work?