I think that we should be able to move two or more objects at a time with Nudging, because if you only can move one object at a time, there's not really that much space you can move it to. For moving multiple objects, you'd "temporarily" take out some objects, so you switch how resources are placed, but you would have to put them back in before you leave decorating mode, or else you would lose those customizations.
Example: I have a jelisac and barnacle mound. I temporarily remove the barnacle mound, then move the jellisacmound in its place. Then I can put the barnacle mound where the jellisac mound was before. But if I don't place the barnacle mound back down, the jellisac and barnacle would be moved bak to their original place, instead of the barnacle mound being removed entirely.