non-fermentable malt behavior

[nhradar]

I'm an extract brewer and so use a lot of crystal and roasted malts in my beers. I've noticed that these malts seem to be treated by BTP as fermentables, and so I have to do some back-of-the-envelope corrections for terminal gravities and alcohol percentages. It's not a big deal on lighter or dryer beers, but I've had to do some work on sweeter ones.
So it would be great to have a non-fermentable grain category so the calculated values are more correct.

Thanks!