Possibility to add comments in a replay
In the same way now you can record an off-line game with comments in the chat box, what if we could add comments to an existing replay file? comments that could be displayed in the chat box as you watch the replay. If it is not something hard to do please consider it, as it'd be extremely useful to teach the strategical side of the game.
Who wouldn't like to watch a replay of a final after the players added the comments of what they were thinking during each turn?. Moreover, experienced players could check replays of not so experienced ones and comment on them, pointing out mistakes and what could have been done instead.

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Franpa commented
Already possible in 3.6.29.0