I also wish you could analyze lines from a position that occurred before the current position.
What I would like even more that that though, a blank analysis board, one that isn't hooked up to a database. This would be useful if I wanted to play OTB chess with a friend but lacked a board. It would also be great for analyzing positions while your using the computer. Maybe you want to follow an online chess article, but cant fit a physical board on your comp desk.
Just a suggestion! Keep up the good work chess.com.
I find it a bit odd that I cannot use the Analysis Board to move forward into the next hypothetical moves of the game after the move the game has ended on. Why is this? It's a bit odd. I think it would be a useful tool, and see no reason for its absence.