and "Recommended content" below page
Thanks kindly for the reference to the terrific article; although looking over the first few pages it looks like I've bit off more than I can chew.
CorelDRAW does not support all of the OpenType Features. You can find the supported features here:
OpenType features - CorelDRAW Help
I know that doesn't help with your question of font structure, but you will at least know what is supported. :-)
Thanks Shelby! Helpful and interesting even if not what I needed.