Administration-->Product Management-->Edit Log Levels

Edit option is available as a button next at the top right.

Export option is newly incorporated.

Select the Log level and click on Go.

Figure 1

Make the selection  

Figure 2

Controller name cannot be edited.Only the log level can be edited.Update.Thus the user is not required to add or edit the controller's name,but merely select log levels and change it using the edit option.

Figure 3