Modify custom widget D3 range chart
Hi
I want to modify custom widget which is D3 range chart. The already customized widget have x axis and 2 y axis now i want to add again 2 y axis in the chart. I am new to custom widget, i didn't create custom widget before. And i don't have idea how to create it.
I already have D3range chart custom widget extension file but i have to modify it.
Can anyone please help to modify the extension file. I don't know where i have to modify it.
sharing the links for extension file and the code please check and help me with this.
d3.js - Multiple Y axis and paths in different scales - Stack Overflow

