layer

If I want to assign multiple objects in a drawing to a layer, I need to select them one by one, I mean, I pick an object, and then press the Shift Key and select every other object I need to change. Or alternatively do it one by one, which is even more tedious. Selecting a region does not seem...

Anyone notice problems in drawings changing the layer of a line or other object? Also, view scale and image scale is screwed up. What happened?