Is there an app or a script that can be added to macOS System Preferences > Extention > Share Menu
So you can use the Share Menu to copy to macOS Clipboard?
It would be very helpful when the shortcut Cmd+C is not working, for example, when you are creating a screenshot with Shift+Cmd+4. You edit something, like adding an arrow. Currently, when you press Cmd+C instead of copying the entire screenshot to the clipboard, it copies the lastly modified and currently selected arrow.