massive search/replace in pootle

Hi,

During the review of the translation of 3.3 beta, I found some phrases that
need to be updated in a lot of places (e.g. the translation of "text" to
Hebrew was inconsistent).

I'd like to run a massive search & replace through the pootle, but not
really sure how (or if it's even possible).
Being such a common word, I don't want to do the replace by hand.

Any suggestions ?

Thanks,

Kaplan