Impossible edit permission of folders

OK, now maybe I better know what is needed here. Like in a class room where you want the partition available for multiple users. You can add that partition to /etc/fstab file and it will be mounted when you boot. You can do this in KDE Partition Manager. Just right click on the partition and select “Edit Mount Point” and click OK and the partition will be automatically added to /etc/fstab.

Note: There is an optional box there to select to let users to mount and unmount partition.

Note-2: When the dialog window pops up and tells you it is adding partition to /etc/fstab and then that “this can not be undone”. That is not true, this can easily be undone by simply removing or commenting out the line in /etc/fstab.