You could theoretically create two accounts and then play yourself w/ the moves you had in the "outside" game, although that approach is probably against the TOU. Maybe not if the game is unrated though? Alternatively, have a friend play you in an unrated game w/ the moves.
Outside Games Analysis
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I just had an idea. What if you could get ouside games(otb play or on another website) and submit them for computer analysis? This would make me utilize this feature more. Please sumbit comments on this suggestion.