You can modify an existing C# exposure definition in the current schema.
To change a C# exposure definition
From the C# sheet of the Exposure Browser, select the Change command from the Exposure menu.
The C# Exposure Wizard is then displayed. For details about the C# Exposure Wizard steps, see "Adding a C# Exposure Definition", earlier in this chapter. When you are changing an existing C# exposure definition, the Exposure name text box in the Define Exposure sheet displays the name of your selected C# exposure definition.