Overview > To do
In order for the WPI to show up in the overview for expired WPI's it must have a revision date set in the signed WPI:
This is also where you go in and change the revision date in the future, by editing the WPI, when it is flagged as "too old". Just click on the WPI > Change > Change revision date > Publish.
Next revision date is shown in the view of Tools > WPI: