Set a "Date from" parameter?

[Alberto M]

Hi

Do you know if it's possible to create a field/variable/parameter within Hornbill where we store a "date from" that can be used in all our SQL filters in measures, widgets, reports. For instance: 
 

    h_requesttype IN ('incident', 'service request')

AND h_fk_serviceid IN (123, 321, 112, 322)

AND h_datelogged >= {date_from}

 

With this, if needed, changing this field/variable/parameter, would have immediate impact of the existing filters.

Thanks

Alberto