Custom Search Filters
Calculated Values can now be used to define custom search filters. To do so, simply define a Calculated Value and enable the Search Filter option.
The search filter will now be available within Basic Search, Advanced Search or both (depending on the type returned by the Calculated Value's expression).
Search filters are calculated every night so newly created search filters can take up to 24 hours to appear.
Note: This feature is only available on the Enterprise plan.