Creating a list is a very easy and intuitive issue. FCKeditor offers two kinds of lists. The first one is called an Numbered List.
To activate it press 
on the toolbar. The text which was beside your cursor will automaticlly gain number one on the list. E.g.
This is my text without the Numbered List.
- This is my text when I press the Numbered List button.
If you want to set another number below just press ENTER and the next number will appear
- This is my first line with the list number one. I'm pressing the ENTER on my keyboard
- Now I'm in the second line listed with number two.
- number three etc.
If you want to stop Numbered Listing just press the button again. The function will disactivate.
The second list type is the Bulletted List. Is works exactly like the Numbered List but instead of numbers you have dots. To activate/disactivate this function press
- this is a text written in the first line of the Bulletted List
- this is the second line
- this the third line