To perform a Spotlight search from a Finder window, press Command–Option–Space bar. To close all windows of the app, press Option-Command-W. To minimize all windows of the front app, press Option-Command-M. To view the front app but hide all other apps, press Option-Command-H.
Command-H: Hide the windows of the front app.To find the previous occurrence, press Shift-Command-G. Command-G: Find Again: Find the next occurrence of the item previously found.Command-F: Find items in a document or open a Find window.
In some apps, you can undo and redo multiple commands.
You can then press Shift-Command-Z to Redo, reversing the undo command.
