1<a id="Handling-custom-variables"></a>Working with custom variables 2=================================================================== 3 4Icinga Director allows you to work with custom variables in a very 5powerful way. It implements the concept of `Data fields`. If you want 6your users to be able to fill specific custom variables, you need to 7add corresponding `fields` to 8 9Examples 10-------- 11* Add fields for existing commands 12* Allow to fill an [array of interfaces](14-Fields-example-interfaces-array.md) 13 14