# Defining rights group display overrides

After you create an item group, you can assign it to a rights group as a Read-Only, Editable, or Hidden display override. Each of these specifications overrides for all items in the item group the access conferred by membership in a rights group and the access conferred by the definition of an item-level display override. This additional level of security allows you to give users with the same set of rights different access to specific items.

When a rights group has a display override assigned to it, a user who is a member of the rights group has the type of access defined by the display override to the items in the item group. Display overrides overrule the access rights in the rights group and the access rights determined by item definitions.

For example, if an item group contains an item called dose_missed_rsn, and that item group is assigned to the CDMGrp with a hidden override, a member of the CDMGrp rights group cannot see the dose_missed_rsn item even if the rights in the rights group would allow the user to see the item.

To set up rights group overrides:

1. Create an item group that specifies the items for which to apply display overrides.

   For more information, see Creating a group or item group.

2. Add items for which to apply display overrides to the item group.

   For more information, see Viewing or modifying items in an item group.

3. Assign or modify the display overrides associated with a rights group.

   For more information, Assigning display overrides to rights groups.

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