Image Style "Token"

It whould be great to assign an image style a imagecrop field which has the same cropping areas as a used manual crop field...

I imagine it
1. there is a manal crop field which crops a big image
2. there are some other image styles who made automatically smaller versions of the cropped picture from the croped big image.

It would be great to have only one manual crop image with x sizes and not to have x manual crop areas a user has to apply separately.

this would be awesome and really cool add-on!

thx for your great module!