There may be time where you would like to create a multi-level sort within your data. Some examples of when you might need this could be to find duplicate patrons; perform multi-season event searches; sort patrons within the subscription module; sort orders/tickets within a frequent buyer's record, etc.
Clicking on a column header, sorts any list:
If you would like to further refine your sort, use Shift+Click on the columns in the order you would like them to sort:
Performing a Shift-Click on the same column header again will change whether it is in ascending or descending order:
A single regular click will remove the additional sorts.