Almost there. I've jumped through all of the hoops up to this point, just stuck on this one.
I have the XML file in the right location, but the Sound Set is not listed in Sibelius 8 under Playback Configuration.
VDL 2.5.5
Sibelius Ultimate 8.4
Mac OS X 10.13.3 High Sierra
I have tried restarting the system, and Sibelius, but to no avail.
Please Help!