> For the complete documentation index, see [llms.txt](https://help.workdigital.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.workdigital.io/custom-database-apps/automation-rules/rule-actions/column-control.md).

# Column Control

Column control action allows you to hide fields or make fields as required/mandatory if the [Condition(s)](http://worksmart.net/user-guides/dynamic-custom-apps/automation-rules/record-based-rules/rule-conditions/) of your rule is/are satisfied.

You can define below mentioned types of Column Control actions :

* Hide Fields
* View Only Field
* Required Fields
* Hide Choices