To edit a domain table

1. In the Data Model Explorer, expand the Domains item.
2. Click the domain table to edit.
3. In the grid view on the right, click the record to edit and enter the new values.
4. To add a new record, right-click anywhere in the grid and click Create.

If you add a new record, the Key value is filled automatically with the next free ID (unique).

To delete a record, select it in the grid, right-click and click Delete.

Note:

To add or update a large number of domain values, open the feature class form, export the domain table to Excel, and edit and re-import the data.