how to add an echart through custom menu

[echolove38]

I want to add an echart line or echart bar, how should I do?

[jfhenon]

I moved your question to the discussions. I can try to answer bit you need to be a little more specific. what are you trying to achieve? Do you want to expect this to be a standard feature of svgedit? are you trying to build an extension for this?