Add: To add new values to the "Products" picklist field:
Requirements
tab at the top, and click Add/Edit Field Values
link below the tab.add/edit values
link next to "Products" field.📝 Note: If you'd like to allow any of your users to add new values to the "Products" field right from the "Add Requirement" page - simply check the checkbox labeled Allow users to add new values in "Edit Field" page.