how to model 128 Y cut LiNbO3 ( piezoelectric material ) in a 2-D domain

In my project, I want to model a 128 Y cut LiNbO3 substrate in a 2-D domain. However, in the coordinate system selection, Comsol only allows me to select, like XY, YZ... Plane material system. But I want to select 52' YX plane material system. Can I do this in Comsol in 2 D domain or I have to jump to 3D domain?


Thanks.