The "multiples" feature generates different versions of the same chart using the banner element as filters.
For example we can use Region as a multiples banner on Q19. The result is one chart for every region subset.
How to create multiples
Drag + shift + drop
Drag the banner to the chart you want to multiply and press shift before you drop the banner on the pill.
Edit the multiples property
Alternatively, you can also add the banner key next to the multiples attribute "Edit properties".
The result is seven versions of Q19, each filtered on a different Region.
The banner labels show as headers in the multiples:
Multiples are based on formatted values
Every value of Region has a format specified, so when used as a multiple Region will generate 7 different filtered versions of any given chart.
Remove the format for value 1 (i.e. "North East"), and Q19 would no longer show the version of the chart that is filtered on. However, the other values that have formats will get one chart each.
Multiples will respect hide and sort order
Charts are not generated for hidden values, and if an alternative sort order is specified the charts will respect that order.
Formats for raw values can be specified in the format dialog.