OK I am not "new" new but back after lengthy absence. My char is lvl 54 and I got that black chocobo and it supposedly flies and those green things that float in places.

Is there a place where this is explained? My black chocobo does NOT fly as I found out with instant 'death' trying to Fly down a cliff lol
And how does the green thing in all the places work?
And all the above, does all that only happen when I am Level 60? So did I buy the Stormblood version for nothing until I reach level 60?