How to set tabbar width but don't change multiview width?

if i set tabbar width, multiview width will change at the same time.
can i set it independent?
thanks.

var tabbar = {
	view:"tabbar",
	multiview:true,
	options: [
		{ value: "Scene", id: "sceneView", labelWidth:120 },
		{ value: "Game", id: 'gameView' }
	], 
	height:26,
	tabOffset:0,
	width:120
};



var mainWindow = {
    view:"multiview",
    animate:true,
    cells:[
         {id:"sceneView"},
         {id:"gameView"},
    ]
};



......
rows:[tabbar,mainWindow]
......

You can set width property of multiview
http://webix.com/snippet/fe5384ac

or, instead of defining width of tabbar, you can define widht of separate tab button
http://webix.com/snippet/a25ca0c2