I just realized ...
Since there is only meele and ranged sneak attack ...
I gues this means that off hand sneak attack is not happening?

I don't think that follows, given an off hand sneak attack will be with either a melee or ranged weapon I wouldn't have expected it to show on CC as a separate ability. I know that there are currently separate off-hand attack actions once we're playing the game, but given that's a peculiarity of the way sneak attack was implemented in EA and I think it would be confusing and should be unnecessary to call out a separate off-hand melee and ranged sneak attack ability when creating a character, I'm not losing hope on this one!
Very much hoping folk are also right not to lose hope on more body type variations!