@simkli Thanks for that, but the example above isn’t what I need. I need to add a greed view like the Shopware>Backend>Items>overview, where I will be able to create and delete entries. In order to start I just want to know, whether I need to do the same thing like here Backend Components - Basics or there are differences. Should I call my main window in the initComponent method? and how the directory structure should be here?