Having the global rating as the average of the multiratings

Hi,

I realise that the Multirating plugin doesnt create automatically the final rating.

For example, at the moment, the user has to rate the following:

GLOBAL RATING: 0-5
SERVICE: 0-5
FOOD: 0-5
PRICE: 0-5

But the final rating is just the Global Rating, and not the average of all of them. It would be awesome to have the final rating as the average of all the multiratings.

Taking the example above, is it possible to have the Global rating as the final average from SERVICE+FOOD+PRICE?

Because right now the global rating is independent from the others multi ratings (and our users are complaining about it).

Thanks,

Martin.