I saw that in possible add a static block from the category management into Magento backend as you can see in picture
I tried to add the static block and to display it but it doesn't work.
I want to display a different static block for each categories that I have (e.g. for the category 1 I want display a gallery with only pictures that are about the specific category also a little banner that have a specific content for the specific category, and so for every category)
How can I fix it? I prefer to manage it from the backend
at left is the screenshot from my magento's backend