Mixing fonts in a cell

[nikolai hlubek physik tu-dresden de]

Hi there 

I've browsed the archives a bit and it seems that this list 
is also read by the developer(s) of gnumeric, so I'd like 
to thank you for this great program. 

Now to my problem: 
What I'd like to do, is mix greek an normal letters in a cell. 
i.e. : Tau / m/s (Tau should be the greek letter here)
I've somehow found no way on doing this. 

If this feature is generally unavailable then you can 
change this question into a feature request, as this 
is very important for me to label charts correctly. 

Nikolai

-- 
Die Mir, der Stolz des russischen Volkes versank im Pazifik. Nach
86.000 Umrundungen der Erde wurde die letzte Hoffnung aufgegeben,
doch noch intelligentes Leben auf diesem Planeten zu finden.
                                                              [Axel Wille]