I never found a way to post an array with BBcode for now, or I think it could be good for 2 reasons:
1: to post things inside an array
2: when you have to explain some events, a 2 columns array with lists inside could emulate well the conditions on one side/ actions on the other side
Just a little suggestion, as I saw it on some forum, I though it might be helpful in this case yet not too hard to implement.