You can modify the Trellix FRP policy settings from the Policy Catalog.
Your user account must have appropriate permissions to edit Trellix FRP policy settings.
Task
Click Menu → Policy → Policy Catalog, then select File and Removable Media Protection from the Product drop-down list.
Select the category from the drop-down list.
All created policies for the selected category appear in the details pane.
Click the policy name.
Edit the settings as needed, then click Save.
The policy settings are updated.