The upstream bug suggests a confirmation dialog for this mode, as well as what you said. The confirmation dialog is going to be in KDE4, but the dev didn't say anything about a more visible notification of it being on. If you still want this feature, you might want to comment on that bug or file another one (upstream).
** Bug watch added: KDE Bug Tracking System #132049 http://bugs.kde.org/show_bug.cgi?id=132049 ** Also affects: kdebase (upstream) via http://bugs.kde.org/show_bug.cgi?id=132049 Importance: Unknown Status: Unknown -- make "input to all sessions" mode more obvious https://launchpad.net/bugs/17608 -- kubuntu-bugs mailing list kubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs
