## mark a section (Learn more)

Please make `NSWindowCollectionBehaviorMoveToActiveSpace` the default window collection behavior. I am not a user of Spaces myself, but I receive bug reports for windows where I forget to set the behavior, so definitely `…MoveToActiveSpace` is what users expect, and logically I can’t see why this would not be so. Having application developers set this is bad because: 1. It requires an outlet to the window, since the behavior cannot be set in Interface Builder 2. The code to set it is non-trivial when the application needs to run on Tiger or earlier. 3. Having each application set the behavior for each window is bad from the philosophical POV that applications should only specify behavior in edge-cases where they know better than the OS/user.

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