[Oberon] How do I set initial window size in Unix/Linux Oberon?

[B. Smith-Mannschott]

Back the in the days of DECOberon V4 (am I that old?) I used to be  
able to say something like::

   oberon -geometry 1024x768

Alternately, is there some way to get the initial viewer layout to  
scale when the window is resized manually?

Specifically, my X Server (XWin32) at work spans two screens  
(totalling 3200x1200), and it does me little good to have Oberon open  
up so as to hog both screens.

Thanks,
Ben