. Hello friends! I'm having trouble using empty / image. I can open and scale, rotate the blue prints, but each command, let Blender (2.77a) unanswered for 5 or 10 minutes. When I click on the image, it just freezes. After a while you can move to other buttons, but clicking on the image again, Blender does not respond. It's a bug Blender? It is to fix it? PS .: I'm used to import blue prints through property "N" / background images without problems. But I would also be able to use the function empty / image as well. Thank you very much.
If selecting objects takes too long , change the selection method :
in user preferences under system tab , change selection mode to OpenGL Occlusion Queries.
if it's still slow , give the empties meaningful names and select them from the outliner instead.
The shortcut ALTRMB will pop up a menu in the 3d view with a list of object names directly under the cursor,It should saves you the trouble of going back and forth between the two panels.