How to pass command line options to capistrano?

I love the support for Ruby and Capistrano in 12.1. Being able to debug those Ruby files is wonderful.

One thing that I haven't been able to do, however, is to pass capistrano command line options along when starting a task from IDEA.

We rely a lot on setting variables from the command line, e.g. cap deploy:setup -s a_variable=123 but haven't been able to do this from within IDEA.

We have tried this (in the Capistrano Configuration Dialog):

1. Adding the -s xx=yy to the task name. Fails with "task does not exist"
2. Adding as "Task Arguments". Fails with "the task `deploy:setup[a_variable=123]' does not exist.
3. Assing to Ruby arguments. Doesn't work since they don't seem to be passed on to capistrano.

Help?