System configuration is a very useful feature of the Magento platform. At the same time, it’s easy to create new configurations for your own custom solutions. We’ve previously discussed on how to add new system configurations with different fields. Today I would like to describe one more type of fields, which can be used depending on your needs. This is a dynamic field block. At times, managing complex data through system configurations is necessary, especially when the number of records to be added isn’t predetermined. In this case it’s impossible to create the exact fieldset in a system configuration tab. Thus, dynamic fields prove to be invaluable.