Adding spinner when clicking an icon button

Webix JS
1

Hi All:
How can I add a spinner (ie. fa-spinner or fa-circle-o-notch) when I click an icon button inside a datatable?
http://webix.com/snippet/907a6cba

2

Not quite sure where spinner must be shown
Anyway, you can use onClick handler to define handler for the necessary icon
http://webix.com/snippet/fc312443