SUMMARY Some people prefer to have the "Notifications" widget separate from the System Tray. It's possible to disable respective "System Tray" and add widget. However, currently only System Tray exposes UI option to set keyboard shortcut that can activate/open "Notifications" panel. Thanks to the tip of Christoph Wolk (cwo) at KDE forum [1], I've figured that it's possible to set shortcut for the "Notifications" widget in the config file: 1. Add "Notifications" widget to the panel 2. Open ~/.config/plasma-org.kde.plasma.desktop-appletsrc 3. Find appropriate section that mentions widget. For example: [Containments][2][Applets][48] plugin=org.kde.plasma.notifications 4. Add new section and set keyboard shortcut there. For example [Containments][2][Applets][48][Shortcuts] global=Meta+Alt+C 5. Reload plasmashell using KRunner or Konsole kquitapp5 plasmashell && plasmashell & 6. Now you can find previously set shortcut on the System Settings > Shortcuts > Activate Notification Widget (it wasn't there before) STEPS TO REPRODUCE 1. Add "Notifications" widget to the panel 2. Right click on it and select "Configure Event Notifications and Actions" action 3. "Notification" section of System Settings opens OBSERVED RESULT For obvious reason KCM doesn't provide an option to set keyboard shortcut to activate widget EXPECTED RESULT Keyboard shortcut to activate widget is possible to add from the UI SOFTWARE/OS VERSIONS Linux/KDE Plasma: Fedora 42 KDE Plasma Version: 6.3.4 KDE Frameworks Version: 6.13.0 Qt Version: 6.9.0 ADDITIONAL INFORMATION I dug a little bit in commits and found that required option was removed in Plasma 5.22 in favour of action to open KCM directly [2] just like previously was done with some other applets (Bluetooth, Network connections). I also have no reason to move many applets from the System Tray, but sometimes I need to glance at some that dynamically change (like Keyboard Layout and Notifications) and for me it's easier to keep them separate in the panel and activate with keyboard shortcuts. [1] https://discuss.kde.org/t/this-week-in-plasma-multiple-major-wayland-and-ui-features-kde-blogs/33316/17 [2] https://invent.kde.org/plasma/plasma-workspace/-/commit/4172720357684b952ded4b8420374e301589ad1f
I would be in favor of this; it's currently not possible to set a shortcut for standalone applets with the configure internal action disabled, and it's impossible to see the About page for them as well as their tray versions. But this would increase the context menu complexity of tray icons a bit, and we'd have to consider how it interacts with the tray header - would we want this as an extra button? Seems unnecessary for such a minor feature, but we also try to not have functionality exclusively in context menus.