In Global Keyboard Shortcuts -> KDE Daemon I identified three screenshot-related shortcuts: 1) "Start Screenshot Tool" -> Starts spectacle with fullscreen shot already being taken 2) "Take Active Window Screenshot" -> Takes active window screenshot and saves the file to standard location 3) "Take Full Screen Screenshot" -> same as 2) but with a fullscreen screenshot Wishes for improved workflow: a) It would be nice to have a key that takes the active window screenshot but also opens spectacle; e.g. to be able to use the export functions b) It would be nice to have another keyboard shortcut that lets the user immediately select a rectangular region and then show it in the spectacle window for further processing. Also nice would be if the above-mentioned shortcuts could be directly configured in spectacle.
b) is already in master, in that you can take a rectangular shot with a keyboard shortcut, but Spectacle closes after the shot has been taken. As for a), the keyboard shortcuts are meant to be a quick way to take shots and continue without interrupting your work. After b), we already use up 4 keyboard shortcuts; I'm definitely not going to add more. That said, nothing stops you from defining your own shortcuts in System Settings for your needs. Run `spectacle --help` to see a list of command-line options you can use. You won't be able to configure shortcuts inside Spectacle because the shortcuts aren't handled by Spectacle. They're handled by KHotkeys and they need to be configured by KHotkeys.