Please let me know below understand is correct.  Thanks.

1) Creating custom hair via modification of existing hair, this means that you would create hair in CC3, export it to your 3D application, and then import back into CC3 via the File>import/export fbx method

2) Creating Assets into CC3, meaning you design clothes in another 3d program and import them into CC3 you use the Create>Accessory method

3)You only use the Transformer for Daz and Hivewire imports

4) When do you use the Create>Cloth, Hair, Acc (with fbx key)?

Are there any other methods or more appropriate methods for getting Assets,Character in and out of CC3 from another 3D programs?