Toolbar Filter Menu
Using the filter button in the toolbar opens the Filter Menu. This allows you to quickly filter your view based on the configured fields and other options available.
Filter Side Panel
Click "more filters" in the Filter Menu to open the Filter Side Panel. This panel allows you to view and add filters to the view. The first item in the panel is the view scope, designating which "Opportunities to Show".
You can add filters based on Opportunity Fields, any fields from Related Objects, or apply your Custom Filters.
Custom Filters
Custom Filters are added directly to the SOQL queries powering the pipeline views enabling you to create filters to match any requirement. Depending on your configuration, they may appear at the bottom of the toolbar's Filter Menu.