I usually don't post my feature requests on the forum but this one would be quite neat/important to have for me. So I hope I get some eyes on it. *cough Diegos or Ashleys eyes cough*
github.com/Scirra/Construct-feature-requests/issues/639
Although I have a feeling that nobody really uses this feature. Global layers I do see mentioned here or there, but global objects? Not so much. Maybe by coincidence since Arrays are by default global.
But I do believe being able to set global on a per-instance basis rather than the entire object (and at runtime) would be a really useful upgrade to this feature.
Cheers!