Amorphous tutorial

Dear All,

Is there any tutorial to have an amorphous cell?

I already built my pdb of polymer crystal structure that contains of 38000 atoms, this number distributed on 196 chains.

I just need to construct the amorphous structure.

is there any tutorial?

is the denstity refers to the experimental crystal phase density?

what is the ramp density means? is it the target density (amorphous expermintal density) ? 

is the output would be in pdb format?

Do I need only to use the construct tap only?

Thanks,

Grad