Drag and drop support for answers

What is the general goal of the feature?
To use drag and drop to put answers in a determined position. Something like the duolinguo app

What are some example use cases for this feature?
We are working language development on children, so we have some questions like put the car over/under right/left the house or to put words in a sentence in the correct orden.

What can you contribute to making this feature a reality?
This is a really useful feature for us, so if it's possible I can give it a try to code it, just need a push in the right direction I'm no expert so it would be messy but hopefully it might be useful

Really interesting feature David. Rather than code it up, can you upload a few paper sketches of how this would look in Collect?