Reduce filter options based on current

Reduce filter options based on current selections on the Filter tool

If the project involves multiple templates, the drop downs from the "Stage of deliverable" in the filter tool in the Deliverable's page becomes very long, making it hard to the general user to find what he/she could be interested in. A desired outcome could be that by selecting the Type of deliverable (template), the Stage of Deliverable field (and similar ones) would only show the required activities