How do I organize incident templates categories ?

How do I organize incident templates categories ?

Hi,
 
I have installed SDP 8.0 Standard version and I can see that "new incidents" have 3 categories (Internet, Hardware and Email) in these categories, there is a few incidents templates.
 
How do I move new incident templates in to those categories and how do I create new categories?
 
If I create a new incident template it lies outside the 3 preconfigured categories.
 
I've searched google for a solution and I've looked all over the admin setup site, but I simply can not figure out where I create and organize these categories.
 
I hope someone here can help me :-)
 
Thanks in advance
 
/STN

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