Can anyone explain how mouse input is handled on the tablet especially right click?

I was playing TMW today and I realized you can not right click to bring up the popup menu for trading (or any of the other options).

I really dont know if it is even possible, but I would like to 'try' and make right mouse clicks work, rather than trying to turn some keypress into a right click but I really have no idea how maemo handles it.

Thanks in advance...

-John