How to size before displaying morph view of TranscriptStream?

Tue Apr 2 23:13:42 UTC 2002

 t _ TranscriptStream new.
tview_ (t openAsMorphLabel: 'test1').
tview openInWorld.
tview position: 20 @ 20.
tview extent: 600 @ 30.

This displays a larger window first, then erases that and displays the
correct smaller one.
If the sizing is done before the openInWorld, it does not rezize.

What is the trick to have the window sized nicely before display?

Thx
Ken brown