We've started to build up a custom library of pieces that we use often (selected tree models, people, cars, etc). One issue that is plaguing me is when we add items from our library to a scene and the units don't match. When we insert the object the first time, we have no problem. But when we close the scene and open it back up again, we get a box that pops up that says 'the unit scale of the xref object does not match the system unit scale. Do you want to rescale the xref objects to the system units?' for EVERY OBJECT we initially loaded in from the custom library. It's not a huge deal, but I have to sit and watch the scene load and hit OK a dozen or so times. This doesn't happen when I use items out of the default Forest library though. Is there a way to suppress this error on a custom library?