Multaj dankojn..
the directory you told me, ~/.kde/share/applnk is empty. All the stuff is in the /local one.
At the time the stuff in (and in the sub-directories of ) /.local/share/simplified/applications/Mandrakelinux seems coherent with the appearance of the Kmenu.
I have yet to check if saving the modifications doesn't change these repertories neither the appearance, or if it changes the directory but not the appearance.
And also I have to check if any direct modification in the repertories is readily reflected in the appearance, either immediately or at the next session (or even at the next reboot).
If tere is any place where these topics are clarified....
antamajn dankojn