Make use of the two web blocks available:

1. Network Diagram Page

- To add and edit nodes

- To link the nodes

- Attach an image to represent the individual nodes

2. Network With Option Page

- A sample Node diagram

- Real-time customization of Node options

- A generate button to display the customized options in json format

For more information click on the Documentation link found in the sample Demo application or go to https://visjs.github.io/vis-network/docs/network/