[Seaside] how to set default app

[squeakman]

Hello All,

I would like to set the default app to "myApp" when seaside launches. 
Currently it is set to WAWelcome.

I have done a bit of poking around in the class WARenderLoopMain but 
changing this class feels wrong to me.

Is there a simple way to set the default app for seaside?

Thanks,
Frank