I've jumped into Trello headfirst this week and am loving it. I've added about 200 cards into a board with a bunch of detailed comments in many of the cards. I want to share copies of the board with two separate groups of people but don't want them to see each other. I thought I would just be able to use the copy board feature, but was disappointed to see that activity does not carry over when copying a board. Is there any way to copy activity when copying to a new board?