Harmony One/Firestick: Which tutorial for me?

Not sure if I am in the right Kodi forum, so re-direct if needs be.
I have a Harmony One (already programmed for TV/AVR/Bluray and want to program it to control Kodi 17.3 with my FireStick. I’m a little long in the tooth and I’m having a problem deciding which directions would be the best to follow. I’ve done some searching and think that this may be the one to follow: http://forum.kodi.tv/showthread.php?tid=…id1949356, but not sure and would appreciate any suggestions. My Windows PC does not have eHome.
And, once I’m set on the right tutorial, I know that I will then have questions…Which forum should these questions be addressed to?
Thanks.