Nunit Launcher and options for NUnit

Hi,
I wonder is there the possibility to pass additional options for NUnit (e.g. /nothread) from NUnit Launcher?
As I know launcher supports only options:

${teamcity.dotnet.nunitlauncher} <.NET Framework> <platform> <NUnit vers.> [/category-include:<list>] [/category-exclude:<list>] [/addin:<list>] <assemblies to test>

How can I add additional options for nunit?

Thanks
Rafal