tab stops in gtkcellrenderertext

["control H" <control h gmail com>]

Hi,

I try to change the default tab stops setting in a gtkcellrenderertext.
However, I can't find a possibility to do this. There isn't for example
a pango property that does the job. And I can't find another "link" to
the underlying pango structures.

Any ideas on this?
Thanks in advance.