We have recently gained a two year old mini dax who is a fussy eater, she only eats if the bowl in the basket and she pushes it over now and again. Sometimes we move the other two mini daxie out of the way (to see if this makes any difference) and soetimes it does. Have we gotto be a bit ore patient or is she trying to show us who's boss

If the dog is in good health and is simply being fussy just perservere with her, no dog will starve themselves if there is food available. You could try microwaving the food or adding something like a small amount of gravy or cheese through it just to get her started (don't spoil her though it will start bad habits)
Keeping the other dogs away is a good idea but sometimes having other dogs near can be better. If you feed them all at the same time and put the bowls about 1 meter apart they tend to scoff their food down so the other dogs won't steal it :)