When a Filter is created, a new deck is shown on the worksheet that allows modifying the Filter based on its contents. Filters allow altering the View by placing restrictions on the data used to generate it. A filter can be a Dimension or Measure dragged from the Data Pane. If you dragged a Dimension containing multiple Ship Methods, you can enable/disable individual Ship Methods in the list.
For more on using Filters, see the Creating Filters section under Building Views.
