I have browsed several answers... but none seems to address my question.
As reported in bug #1067876 the options to "safely remove" an external drive is gone.
No problem! Umount is sufficient for me. However, I cannot recognize WHEN it is safe to pull the USB plug out since the icon for the storage device does not disappear, and no notification is displayed. How can I know if it is safe to unplug the device? How can I explain to my mother when it is safe to do so? So I am looking for an easy solution (as it is present in 12.04).