I'll chime in and add this: with my Khaki, she has always sat really tight. This time if she wanted to sit, I let her. I just totally left her alone. She was getting up, and doing the bath, poop, food routine, exactly like ML said. I think that *if* you are going to move her nest, just be sure that she sees her eggs every single minute. And then keep things quiet and calm while she re settles. Or lock her up, like ML said. I've never personally had to lock up a broody, but I did just have to lock up my entire flock due to weather, so I used a big dog crate to keep my runners apart from the adults. It works.
Oh, and today I found a total of 4 Khaki x Mixed Ducklings. All 4 have bibs and probly wing tips. One is black, one is khaki, and 2 are grey. They are so so so adorable! Pics to follow as soon as I get the pc up again. I did try to identify genders, without success-- I couldn't see anything.