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Users can simultaneously sort multiple column titles using the sort icon 
and also prioritise which sort to apply first, second, third and so forth.
To sort columns and prioritise your sort:
Click on the sort icon
Select a column heading by clicking on the "Add a sort" area
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Select the sort order: ascending (smallest to largest or oldest to latest/newest; e.g. A-Z or 0-9) or descending (largest to smallest or latest/newest to oldest; e.g. Z-A or 9-0)
You can add another column heading to sort by clicking on '+ Add a Sort'
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You can also order the priority of which column heading to sort first, second, etc by selecting, dragging and dropping the six dots
above or below another sort option.
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