Default navigation in table view

Webix registration number is 2560086

By default I am selecting the first item in the data table & when user press the Up or Down arrow key from the key board, the responding items should be selected accordingly.
I tried it but the navigation keys are not working if first item in data table is selected by default.
Please find the sample code in the below link.
http://webix.com/snippet/f68dc45e

Component have a concept of focus, component will react to nav-keys only if it is in focus.

You can click on DataTable to move focus there, or do it programmatically.

Code: http://webix.com/snippet/5ea6d1b8
Example to test: http://webix.com/snippet/m/5ea6d1b8

Thanks Maksim.