This is my first post.

I am trying to install icy_picture_modify and don't understand categories.  I've searched the docs and forum and can't find the answer.

I've looked through my gallery and I don't see where categories come into play.  There is no field for category anywhere in my gallery and yet icy is dependent on categories.

In the icy.acl.zml file the settings for example_user1, it says that the user
This user can upload image to category whose identity is `34`and
can create new gallery in the parent category `34` and its sub  category

What is category 34?  Where is it set?

I don't see an admin page for icy.  Does this mean that the icy.acl.zml file has to be changed manually for each user?