You can easily enable/disable filters on course achieve page by enabling the settings from the backend. In general settings, you will be able to see two filters settings:
- Course Category Filter: Enable course category filter on course archive page.
- Course Instructor Filter: Enable course instructor filter on course archive page.
Check these setting to display filters on course archive page. Go to course archive page and you will see course search widget. Here you can filter course category and course intructor.