Multi level sorting

Hi!

Excel contains a "custom sort" functionality, where you're able to declare multiple priorities of sorting.

It would be convenient for example, that at a primary level, you sort everything on due date A>Z, followed up by being able to sort on creation date.

That would for example allow you to sort your list based on due date, and everything without a due date would get sorted on a FIFO level.

I'm sure there are multiple applications for this.