Work with FBX With Blendshapes

Hi. This is a really cool app, but is there any way to take an FBX that has blendshapes and re-shape one of the meshes and export the FBX back out again without losing the blendshapes (and other data)? Or even better, is there a plan to make a plug-in for Unity?

In Unity I use an asset called Skinn. It’s sort of a Swiss Army tool for skinnedmeshes in Unity: you can extract blend shapes from an FBX, and add them back again.

The workflow I use is:

import FBX in Unity
extract blend shape(s) with Skinn
export each blend shape (and a neutral shape) as OBJ

edit/resculpt OBJ with Wrap3

import Wrap3 OBJ in Unity
add as blend shapes with Skinn