I want to be able to "link" a node (node 1) to another node (node 2) so that when I am navigating a tree structure and irrespective of whether I am at node 1 or at node 2 I see the same child nodes. I believe I would use peer-associations to do this but am not 100% sure and nor sure how I would set it up via webscripts.
Here is my scenario.
I have a company called C1. Company C1 has 2 products P1 and P2. ALL the documents that apply to P1 will also apply to P2. The company wants to have a hierarchical navigation model that looks like the awesome sketch below.