Yes, that does work, but it also stops the other categories from displaying content!
At present, we have 6 categories and only the Fish category has sub-categories. This is the category that we want to expand on click to show the sub categories, without changing the main display.
Is there a way of doing this, or do I need to turn off the "link on main categories" and create sub categories for the 5 other main categories?
**UPDATE**
I have just noticed that if you click on the blank area to the right of the text, the sub categories appear and the display doesn't change. It's only if you click on the text "Fish" that the hyperlink takes effect and changed the main display.