Select first sheet in spreadsheet

Hi, I need help.How to select first sheet and add class webix_selected, when user didn’t click.
webix.ui(
{
view: ‘spreadsheet’,
datatype: ‘excel’,
url: binary->${url} ,
toolbar: true,
bottombar: true,
liveEditor: true,})
thank you

Hello @tolstovaulia257 ,
The sheets can be shown (selected) with the showSheet(name) method .