Using more than one dictionaries at the same time

Alkis Petinis vor 8 Jahren 0
I'm currently writing a text that contains both Greek and English words. The problem is that I can't have spell check enabled for both languages at the same time. I would either have English words underlined as mistakes or the Greek ones, according to the active dictionary. I haven't found any way to enable both at the same time, so if this feature is already present, please ignore my request.