If we end up with such a column, it would be optional (like the Powerline marker) and even if I give a crack at letting the software select an initial + O (+) designation, it would always be over-ridable by the user. Same with a Visual Running Style designation: user could/should double-check whatever the software thinks. There are just too many circumstances to check, I think, or legitimate differences of approach, to add yet another computer generated column which ends up at odds with what you may know better. Put the choice/responsibility on the human (if the human wants to accept it
)
Ted