change desktop-pager appearance in lxpanel?

[farinet at arcor.de]

lubuntu-users-request at lists.ubuntu.com:
> Hi,
> Open the Openbox configuration app, and change the desktops to 4 instead
> of one.

Sorry for my bad explanation:

What i want are 4 squares which do not take more space than one default
square in the lxpanel (that the number of squares is controlled by
obconf, was clear to me ;) ).

Cheers.