How to use Webix.UIExtension?

Webix JS
1

I can not find related document and examples about how to use Webix.UIExtendsion, could you make some suggestion? Thanks

2

Pivot, Mobile Schedulre and Kanban are standalone packages, which can be taken from here

All other are based on third party components, you can get code and samples from here

3

Btw, Kanban is not in the list of demo items:
http://docs.webix.com/samples/

But it is accessible directly:
http://docs.webix.com/samples/63_kanban/

4

Thanks for reporting the issue.
We will fix it.