If I remember right,this was an advertised new feature for RW3. I have found it very useful. But why did they release it,when it only holds memory for a session? I have actually resorted to keeping a scratch-pad to write down some objects so I can find them again. And while we are at it, I think objects should only highlight by category. What I mean is if you are working with linear objects (placing roads for example) only roads should be selectable when trying to reposition them. That would make it MUCH easier to manipulate objects that are close together. So many times I have to move an object way up in the sky,just to be able to select the close asset I want to adjust,because the selection tool snaps to it,instead.