When you setup your mash-in selection, say "single infusion, full body". Once it registers in the mash profile window, double click on that line, it will open another window, where you can adjust the ratio.
On Deck - Crabapple Wine
Secondary - Pomegranate Wine, Red Table Wine, Wild Fox Grape Wine, Blueberry Wine, Surly Furious clone
Bulk Aging - Brewtopia Barleywine, Sugar Beet Wine