FB02 Change in profit center field

Guys,

I have posted documents thru FB01. and now I found out that for some of the line items, profit center is wrongly assigned.In FB02,we can only change the docu. text.Is there any other way I could change the wrong profit center in FB02.I don't want to reverse the document cuz it has 100s of line items and I only need to correct 6 line items for profit center.Any other option? Please suggest.Thanks

Regards