To edit or delete values in a "picklist" field:

• Login using an account that has 'Administrator' privileges.
• Select Requirements tab at the top, and click Add/Edit Field Values link below the tab.
• In the resulting page, click  add/edit values link next to desired picklist field.
• In the "Edit Field" page that opens, click  Edit or  Del links next to the desired values.
• When you've finished editing/deleting the values, click "Save" button.