This tab of the NAnt action configures additional options.

 

Listeners: Add specified classes as project listeners (optional, one per line).

 

Extensions: Load NAnt extensions from the specified assemblies (optional, one per line).

 

Additional options: Used to specify any additional NAnt command-line options.

 

NAnt executable: Overrides the default location of NAnt.exe (optional).  Useful if multiple versions of NAnt are installed.