# Overview of display overrides

Display overrides allow you to refine user access to individual data items on forms. For a particular rights group, you can specify whether the group of items that make up an item group is Hidden, Editable, or Read-Only. This designation overrides the rights conveyed by membership in the rights group and also overrides the display properties of the items in the group. This additional level of security allows you to give users with the same set of rights different access to specific items.

An item group can be in only one display override per rights group. For example, if you move an item group into the Read-Only override list and click Submit, that item group is not available for selection in the current rights group for the Editable override.

- Read-Only—Users can view but not update the items.
- Editable—Users can view and update the items.
- Hidden—Users cannot see the items.

You can control data item access:

- Through the InForm user interface with user rights or by defining rights group display overrides.
- With item definition display overrides that are defined in the Central Designer application.

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