Controlling grain directions for parts analyzed with SMT/SMA have always been a problem - and a costly one at that.

The ability to influence/control grain directions via Smart Layers is a must have with these tools.

I would envision setting up some "governing rules" simply based on how parts are analyzed regarding X, Y, and Z rotations. Below are examples of what I'd envision could be added to the Smart Layer properties.

VERTICAL ENTITIES

EXTRUDED ENTITIES