Calculating Goals for past events

Hi there, I have set up a goal based on an event. I started tracking that event a few days ago, so there is allready data in the database. Anyways, it seems, that the conversions (the events) are only starting to be counted from the time I created the goal. Is there a way (like some parameters to the archive command) to also calculate the conversion for the events, that were created before the goal was created?

kind reagrds

this would be really useful for me too, if there was some kind of batch that could be run at night as i would imagine it would be a big load