To edit a master code, click or double click on it. To delete a master code, select it and click .
Please note you cannot delete a master code in use. To delete it you must unlink the data everywhere it is used. To see where an MC is used, go to Settings - Tools - Definition maintenance.
Deleted definitions can still be seen in the list as dashed if in Settings - User interface the parameter View deleted data is set on YES. Use the button to restore the definition.