Can a recipe for microwave cooking be multiplied?

Can a recipe for microwave cooking be multiplied?

Barbara Kafka (Chef and Cookbook Author) gives expert video advice on: How do I make sure that my food is cooked evenly?; How can I cook large quantities in the microwave?; How do I cook more than one dish in the microwave at the same time? and more...

Multiplying a microwave cooking recipe, ie; for more people. Is not a lot of fun. And it's not easy. It doesn't go times two, times three, times four. It's odd. And every time I made a different size dish, or a different portion. I had to test and retest, and retest, till I got it right. And I think it is rigid, there's no doubt about it. But that's one of the reasons people like my book, is that they know if they follow it, they'll get a good result.