Filters : Working With Filters : Applying An Existing Filter : The Filter Library
  
The Filter Library
Filters in the filter library can be added to the Filter Bar by dragging and dropping them, or by means of the filter panel context menu. In addition, selected chart elements can be dragged to the filter bar to create a filter.
As mentioned above, any filter can be dragged over the Filter Bar to apply it instantly. See Working With Filters for a description of the various options for applying filters using drag and drop.