Edit category

Edit category >>Display type>>Both

I have a few questions that need help answering.

1. How do I clear the repeated display of subcategories from the product list page?

2. How do I set up the left-side filter page? Where do I set it up? Because the product attributes are different for each category. How do I set it up separately? Or is there a better solution?

3. How do I modify the category page template? Where can I find it? I’m using Elementor.