You can use the Materials Paintbrush to quickly apply a different color or material to a pad. For example, you may want to change a patio to stone.
To apply a material to a pad:
Display your model in 3D view and make sure the pad is visible in the view.
Select Edit
> Materials Paintbrush, or click the Materials Paintbrush button
on any tabbed toolbar.
In the catalog panel, select the material you want to apply.
Click on the pad surface. The material is immediately applied.
Right-click and select Finish.