Editing a FlexPass is done in two parts.
FlexPass Details (configure the BUNDLE of rates) and Redemption Details (Configuring the PARKING SESSION).
Click the 'Edit' hyperlink to edit the perspective parts of the FlexPass.
Edit FlexPass Details first.
Select the 'Submit' button to complete the changes and save the FlexPass Details.
Next Edit the Redemption Details.
Select the 'Submit' button to complete the changes and save the FlexPass Details.
You will land back on the FlexPass Index page.
If you try to edit a FlexPass via the Zones/Rate tab it will lead you back to the FlexPass tab pages to actually edit the rates/details of the FlexPass.