Set Image of a normal unit

[theo]

I has been thinking about this for a while.
Can you change the main image of a normal unit?

[Karsten75]

Nope, No, Nyet, Nee, Non, Ei, Oya, Hókai, Noon, Naw, Sega, Nie.

I've found a site listing another 250 translations for the word "no", but by now you might get the general idea... :)