Ok dokie.

No there is not any actual information about shorthand Lua script & VisObject access. To be honest, I have no idea how I would even begin to document it as it's not set in stone & you can try various possibilities of accessing / setting something...
game.CurrentCharacter.Destination -- or
game.CurrentCharacter.CharacterDestination
Sometimes you can really shorten the paths like in the first example line above & other times you have to type out the full table / field name or it won't work. A good example of a table where you have to type the paths out in full is the active animation table...
ActiveAnimations["test"].AnimationLastFrame
ActiveAnimations["test"].AnimationCurrentPosition
-- etc...