Hold $KEY in text fields to get pop-up menu of given character with diacritic markings No matter how long I've been using MacOS, it seems there's always someth

Hold $KEY in text fields to get pop-up menu of given character with diacritic markings No matter how long I've been using MacOS, it seems there's always something new to learn that will surprise me. Something like 13 years exclusively using Macs for my desktop OS and I've just learned this. Granted I don't speak or write any foreign languages so I wouldn't have much use for diacritics, but it's still cool. Shortcuts I constantly use: - Command-Backtick - Command-Tab (seems obvious, but some people don't work this way...) - Command-Tab to hidden app icon then press Option before releasing Command to restore a hidden apps windows - https://apple.stackexchange.com/a/55440 https://apple.stackexchange.com/a/55440 - Command+Shift+4 to take screenshots using the built in functionality, or the other similar shortcuts for screenshot-ing a screen, portion of a screen, or a window to the clipboard. - Shortcuts for sending window to left half / right half of the screen, or switching screens, using Rectangle. - Command-Opt-\ + TouchID for 1Password deserves a mention for sure.