17 - Are special abilities in "hidden mode" by default in all players, without have the icon of special ability? (that's a yeah, I know if there's no icon/pic of special ability, we have to discover it)
No, they are not. Special abilities are visible and transparent.

LOL... this was 1 of my questions... my GK is scoring fouls now and don't have SA... so maybe in some sense there are these abilities.. not SA's in hidden mode, but in % by default...