2D Mesh Deformer for Animation supported?

Hello,

I am currently animating a character with a 3/4 view. The character has a sash in front and I want it to have a 3d illusion whenever it is moving.The body parts were animated in spine and I imported it to unity for the cloth physics. Currently I am using Anima2D.

My questions are:

A. Is there a way I could deform the mesh ?
B. How would I be able to animate without affecting the imports from spine?

Thanks in advance.