You can modify hatch patterns, solid color fills, or gradient color fills. You can then add additional entities to the set of entities to be hatched or filled.
To edit a hatch pattern or color fill:
You can also add additional entities to the set of entities to be edited.
To change a hatch to a fill or vice versa, select either Hatch or Fill in the Hatch/Fill dialog box and select the pattern or fill you want to apply.
You can also add additional entities to the set of entities to be edited.
Access
Command: EditHatch
Menu: Modify > Entity > Hatch
Ribbon: Home > Modify > Hatch