How To Change Default Controller On Yii2?

Hi folks.

On Yii1 I can change the default controller for any another Instead of SiteController, as is explained here: http://www.yiiframework.com/forum/index.php/topic/5372-change-default-controller-action/

How can I do the same on Yii2?

It can be configured via defaultRoute: http://www.yiiframework.com/doc-2.0/yii-web-application.html#$defaultRoute-detail

Just what I need!

thank you very much. :)

Many thanks for this.