place in systray does not work in plasma5 anymore as there apparently is no ksystraycmd binary anymore. the option probably should be removed before final and added should someone feel like resurecting ksystraycmd with KSNI support. Reproducible: Always This causes ugly errors when trying to run an application with systray enabled as essentially klaunch/run will complain about ksystraycmd not being available. Very ugly.
Having just uninstalled Arch's KDE4 "kdebase-workspace" and installed KDE5/KF5/Plasma5 5.2.0 packages; I can most thoroughly confirm that having launcher menu items fail with a "... ksystraycmd ..." error is **very** annoying.
*** This bug has been marked as a duplicate of bug 344168 ***