Editing Forecast Category

Editing Forecast Category

Hi there,

I have customised my Sales stages in the section "Stage Probability Matching"
I wanted to update the related Forecast Category, however am having some issues

In documentation it says you can:
Associate Forecast categories (Pipeline, Closed, Omitted, Best Case, Committed)

However in my Zoho CRM, I can only see Pipeline, Closed and Omitted
There is no Best Case or Committed

Where do you add these Forecast Categories of Best Case or Committed?
Note that I am only using the Free Edition of Zoho?

Best Regards
Susan