I have noticed that the SlicerIGT tutorials have been updated recently (specifically Lesson U-01). In this tutorial, it states that one of the extensions to download is SlicerIGSIO. When searching in the extension manager I was unable to find this extension. I was wondering if we have to directly download it from github, or if there is another work around. Anyway I would like to thank you for taking the time to read this and I look forward to your response.