Simple paper model - confusing GH.. Deployable surfaces.

I am trying to design a model on GH of what I did with a piece of paper..

I have attached an image of the paper model, its a simple shading/deployable surface.

A print screen of what I have done so far  is attaches as well.

1. I cant seem to get a loft on my 'Line SDL' as to create a visual surface..
2. How to make few of those segments (three for example) align and work with one motion - there could only be one fixed point in the middle segment and the rest would move closer and further away.. I dont know if that is possible..
3. This is the most confusing one - would have to create an opposite moving segment in each of those three segments, that would fold other direction to the main segments...

If anyone can help - I would really much appreciate

Cheers