Is it possible to enter the grains you want in, then saying what percentage of the total grain bill you want them to be? This would help a lot brewing clones that just give you percentage of the grain bill.
Someone here had the cool idea of entering a 100-pound recipe, so that pounds equal one percent increments, and then to scale the recipe to the batch size you want. Then round the odd figures to nearest ounce or 1/4 pound?