Subcategory

Hi there!

Is it possible to have subcategories of categories? And of course, we will be able to create a search filter for subcategories as well. For example, I select a category and all the subcategories for the category are listed in the dropdown list in the search filter. not all subcategories but only subcategories that are assigned to the category.

I select Psychology in the dropdown list and in the next dropdown list, only subcategories like child physiology, family physiology, etc are listed inn the dropdown list.