<a id="Handling-custom-variables"></a>Working with custom variables
===================================================================

Icinga Director allows you to work with custom variables in a very
powerful way. It implements the concept of `Data fields`. If you want
your users to be able to fill specific custom variables, you need to
add corresponding `fields` to 

Examples
--------
* Add fields for existing commands
* Allow to fill an [array of interfaces](14-Fields-example-interfaces-array.md)

