ah, and source+=";https://www.containersforchange.com.au/qld/where-to-return?location=envirobank-cooroy;https://envirobank.com.au/where-to-recycle/?state=&postcode=4563" JOSM needs a feature to add sources as you go or something so I don't forget. maybe it does I haven't checked, and you can also just click upload, add the source, and then cancel, but that is clunky and has to go through validation. and also it's for uploading not for adding sources, anyway I'm gonna shut up and learn how to write a JOSM plugin now