how to set default controller

Hi,can i set default controller for my admin in the backend ?

in backend it has sitecontroller,and I created admin controller I want to redirect the user if his role is admin,to my admin this possible or the sitecontroller should be use ?

Thank you in advance.

You mean the "defaultRoute" of the application, you can set the "defaultRoute" value in backend/config/main.php

return [


    'defaultRoute' => 'admin',

    'components' => [...]


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