There are not hierarchical permissions in NodeBB. If you would like to see hierarchical permissions, you could open an issue on our Github page and request such a feature.
I do believe we have a way of copying permissions between groups, so that could help you out in doing what you want.
Is this possible with just a CSS change, or is it more than that. Because the description is disappearing when making a category into a sub-category, I'm thinking it's more than just CSS.
@Giggiux Not sure what you mean. If you move a topic from one category to another, it disappears from the first category. I was suggesting the capability to have the same topic listed under multiple categories.
