GNOME Shell provides a feature to switch between Windows of the current application on "Alt + Key above Tab". KWin provides everything which is needed for that. To make it easier for users coming from GNOME the same default shortcut could be added preconfigured for this window switching mode.
Git commit e38a6da99111bf71c19095cbdae5d8e16ed6dacb by Martin Gräßlin, on behalf of Ghislain MARY. Committed on 25/04/2012 at 22:57. Pushed by graesslin into branch 'master'. Key Bindings for Switching between Windows of current Application Additional TabBox Mode which allows to switch between all open windows of the current selected application. By default Alt+tilde is used which is on qwerty just one key above tab. For non-qwerty layouts the shortcut is unfortunately not convenient. REVIEW: 104730 FIXED-IN: 4.9.0 M +3 -1 kwin/effects/coverswitch/coverswitch.cpp M +3 -1 kwin/effects/flipswitch/flipswitch.cpp M +16 -0 kwin/kcmkwin/kwintabbox/main.cpp M +6 -4 kwin/libkwineffects/kwinglobals.h M +100 -6 kwin/tabbox/tabbox.cpp M +12 -0 kwin/tabbox/tabbox.h http://commits.kde.org/kde-workspace/e38a6da99111bf71c19095cbdae5d8e16ed6dacb