You can put tags in your resource/s when you're filling out the Resource Details upon creating the resource.
- From Resource Details, click on Advanced Details.
- Type in the box a tag relevant to your course, then click "Enter."
Clicking "Enter" allows you to add a new tag. Click on the Save button once you're done.
Related Articles:
What are Tags? - https://support.castlms.com/help/what-are-tags
How Do Tags Work? - https://support.castlms.com/help/how-do-tags-work