Writing text in FCKeditor is a very easy task but you must remeber a few things which wil be very usefull to you.
The ENTER key
The first thing you should know about editing the text is the usage of the keyboard key ENTER or in some computers called RETURN. If you press the key the editor will create a new paragraph. You can also use ENTER with a combination with the SHIFT key. Pressing the SHIFT+ENTER keys simultaneously will just break the line in the same paragraph. However you must notice that the usage of the key is predefinied by the programs developer so it could have different options. If you are not sure how the ENTER key action is definied contact your system administrator to resolve the problem.
The BACKSPACE key
As you know the BACKSPACE key is used for deleting misatakes, whole words or whole text. To make it easier their you can use a combination of CTRL and BACKSPACE keys. If you press them at the same time you will erase the whole word which was before the cursor.
See also
If you want to know about other usefull key combinations go to the User's Guide Keyboard Keystrokes.