wheelers

I have home designer pro 2015.  I tried the soffit with crown- which is great for running horizontal or parallel, but I can't rotate it to put it in the gable.  where it comes to a point and is diagonal. Thoughts?

Help, I am a builder and trying to finish up a home design.  It is customary in this area to put crown molding on the exterior of our homes below the soffit where it meets the exterior sheathing (i.e.brick, siding,etc).  I can get it on the fascia, and i can manipulate a soffit and create it easily below hip roofs, sheds, etc......at this location.  My problem arises when I get to the gable.  I have tried sloped soffits, shapes, etc- no luck.... advise anyone???