It depends on where abouts you are in the directory structure. You can create all the foders you like in your 'Home' directory, by the way you where trying, right click etc, or by using the menu. But outside your home folder you may need 'Root' privileges to create/modify stuff. There are a few ways you can go about this, eg, the GUI (
Graphical User Interface) way, the CLI (
Command Line Interface) way etc. The way I like to do it is through the GUI (
Graphical User Interface).
Right click on your desktop, select,
Create New/Link To application, now in the
General tab, give it a name in the space provided, (
I call mine KingKonq), you can also give it an icon, by clicking and navigating the square to the left (
I give mine a big red X). Now under the
Application tab, in the
Command box, enter
kdesu konqueror, click OK. You can also add to the end of the
kdesu konqueror command, eg
kdesu konqueror / will take you straight to
ROOT's home directory,
kdesu konqueror /home/jagwah would take me straight to my home directory, etc etc.
Now you will have a shortcut on your desktop, whenever you click that shortcut, it will ask you for your
Root password, then it will open up a
ROOT instance of konquerer, from there you can add modify till your hearts contenet. Always be aware that you will be operating as
Root and it is not a good idea to permanently operate this way. I just use it when needed.
You can also create the directories via the CLI (
Command Line Interface), open a terminal,
Start Menu/System/Terminals/Konsole type
su, enter your
Root password, navigate to the directory where you wish to create the new directory, type in mkdir
directory name, hit enter. eg, if you wanted to make a directory named
stuff, you would type in
mkdir stuff
[Edit] To navigate to directories in the CLI (
Command Line Interface), in the console you would type,
cd path-to-directory/, say if you were in your home directory for example, and you wanted to navigate to your Pictures directory, you would type in
cd Pictures/, if you have a sub-directory under Pictures called Icons that you wanted to go to for example, you would type
cd Pictures/Icons/
Typing in
cd .. will take you to the Parent directory,
cd / will take you straight to the Root directory, have a look around at all the various commands you can use while in the CLI, it is a wondrous and powerful thing, however I prefer the GUI