[pygtk] Notebook with scrolledWindow and buttons

[Petr Hracek]

Hi,

I am currently creating notebook with scrolled window (and grid containter)
so that it contains 3 columns of buttons with several rows like

In that case it is working properly
[btn1] [btn2] [btn3]
[btn4] [btn5]

But when I have only two or one button scrolled window (with grid container)
I see for two buttons:
[   btn1  ] [   btn2   ]
and for one button:
[          btn1            ]

Is there any possibility how to tell grid container
that I need 3 columns although I have one or two buttons.

Thank you in advance

greetings

-- 
Best regards / S pozdravem
Petr Hracek