The Enu Tankentai version of the script can do that, but I don't think it works for RTAB, 'cause it was made for Atoa's Custom Battle System and Enu Tankentai. Still worth a try, though.
You can find the script inside Tankentai's demo. I'd post it, but I'm using a school computer.
(RRRevolution and HBGames are blocked, but not this site. Yay.)