How to Define and Display the Descriptive Flexfield (DFF) for Organizational Units in ERP Cloud

We would like to define or update the Descriptive Flexfield (DFF) associated with organizational units, which are stored in the HR_ALL_ORGANIZATION_UNITS_F table.

However, we are not sure where the DFF is defined or maintained in the Oracle ERP Cloud interface. Could you please let us know the correct navigation path to access the DFF definition screen?

In addition, once the DFF is defined or modified, can the flexfield be displayed and entered through the “Manage Departments” screen?
If any additional steps are required (e.g., enabling segments, refreshing the UI, or configuring page personalization), we would appreciate your guidance.