Funnel sales on D3.js. How to do it right?

Question

Data storage

Hello!
Please help! The deadline is right around the corner, and I was given the task to make D3.js Funnel sales which should look like the picture above.
I found a code on github that allows you to specify many parents for one element, refactored that's what happened . N
Now I need to accept JSON with a list of products that will contain information about which page it belongs to, insert a list of dependent products into page blocks and draw arrows from them to other pages, respectively, and it all looks like in the initial screenshot. While my code draws this:
How to make the rest of the functionality?
How to add products to blocks and draw arrows from them to other blocks?
Thank you!
UPD: Done.example

Answer 1

binary editor, for example