How to change the configuration of the field's entity using migration in OroCRM

Sometimes we can face with the different dependencies between the system bundles or bundles that are already created by other developers, and we will have to change the configuration for such bundles. Usually, it can be easily done because OroCRM has a quite good GUI interface. So, using GUI you will be able to change the configuration for any bundle. Nevertheless, pay attention that if you need the bundle for deployment to different servers, this way is not convenient. In case of deployment, you will need to add a description of the appropriate settings and it is also important to follow these settings in further development. The best way is to use the migrations scripts. In this article, we will show you how to change a config of a single entity in the bundle.