2.5d in toon boom

Hey, I recently learning toon boom. I wanted to make this type of rig in toon boom.
if moho 12 can do this than toon boom also do it. But how? Any one help pls.
https://www.youtube.com/watch?v=zdkAG3jMQaA its look like fully 3d!
here is the link watch first 1 minutes.

My thoughts on how to make 2.5D animation.

http://youtube.com/watch?v=d4xfcD3b30g

I have a few other thoughts on the subject. Maybe I will make another video.

Dale

Your information is very interesting. Thank you for sharing