Just starting out with scrolling frames myself and I do know that HybridScrollFrames requires you to create an XML template in order to use it. I do not know much about its associated methods, as well as for FauxScrollFrame and it's methods. Currently working with UIPanelScrollBar/UIPanelScrollFrame templates, I have mocked up a working scrolling window using data from my bags, just working on trying to figure out how to update that data without making a mess.
anyway, resources I typically use are..
http://wowprogramming.com/
https://wow.gamepedia.com/World_of_Warcraft_API
https://www.lua.org/ for general lua help/info
and google of course
most of the more commonly used methods from the API are documented by the community, but for those that aren't, I usually start with a print(method_name()) and start looking at errors and return values, etc..
I recommend getting the addon Wow Lua, it has a nice in-game editor and it has helped me out immensely, I usually use it for testing and fleshing out functions, etc.
https://www.wowinterface.com/downloa...66-WowLua.html
I hope some of this has helped even if I wasn't able to directly answer your question
