Keep tabs on your windows with this instant app enhancement
Keeping your desktop tidy is easier in Sierra because any app that can create multiple documents is automatically enhanced with the ability to gather them in one
window. Sierra gives such apps a tab bar just like the one you’re used to in Safari, without them needing to be updated to a newer version, and you can drag any tab off the bar to split it out into its own window. It also makes Mission Control look less cluttered, with each app’s thumbnail being larger and easier to distinguish. By default, tabs are enabled only for full-screen apps (so you will no longer end up with many desktops for one such app), but they can be disabled entirely or added to windowed apps too.
You can manually or automatically merge document windows, decluttering Mission Control in the process.