Is that a way to add excel like select style?

Webix JS
1

for example:http://handsontable.com/demo/custom_borders.html

On right-down corner, there is a small point that you can drag to change values like excel

2

Nope, default blockselection doesn’t support such behavior.

Technically, it possible to create a custom functionality that will create such kind of “selection” object other datatable.

Can you please share the practical use-case where such kind of selection can be useful. ( in case of excel it can be used to select groups of cells to use in math equations, but I don’t really see how it can be used in datatable )