Add a new field to a coverage feature attribute table

Summary

How to add a new field/item to a coverage feature attribute table using ArcCatalog.

Procedure

1. Right-click the feature class to add a new field to. Click Properties.
   
2. Select the Items tab on the Coverage Feature Class Properties window.
3. Click Add. Define the Item properties in the Add Item window.
4. Click OK in the Add Item window.
5. Click OK in the Coverage Feature Class Properties window.