Is there a way to make a category that will show in all categories in WordPress?
For example, categories on my website are:
- Cat A
- Cat B
- Cat B1
- Cat B2
- Cat B3
I want a post tagged in Category A to be shown also in Category B and its children. So when they check mywebsite.com/category/cat-b1 they will also find Cat A.
I do not really know how to code, but I always can follow steps.