We have a number of super aggressive traders on our books that have asked for this feature. We have also dabbled with a way of implementing it, so we are looking into this.
I'm pushing the 1000 limit in most of the 24 hours currently, but I'm not 100% sure how close I am to it at times. It's only when I'm stung by a charge that I find out. Luckily most of these are minimal, though one day I managed to rack up £800s worth, not much fun. Fingers crossed you can do it.