How do I use keywords in planner?

Begin by adding some keywords to your plan. You can do this by manually entering a list of keywords into the “Get search volumes and metrics” tool. Alternatively, check some keywords in the Keyword ideas view and add them to your plan like that. Just make sure to select the “exact match” option when prompted.

For More Information Please Refer: https://ahrefs.com/blog/google-keyword-planner/