I was looking for ways to sort by more than one column and had trouble finding a demo or clear API entry. Turns out it’s possible - see this sample, http://docs.webix.com/samples/15_datatable/02_sorting/03_sort_api.html
My suggestion is to add some SEO for this, e.g. create a Webix datatable demo called “Sorting by multiple columns”.
As always, thanks for a great UI library and Merry Christmas!
