These examples make use of the Days of the Week tiddler.
The operator may be used to prepend a number of items to the list.
[list[Days of the Week]prepend[Yesterday Today Tomorrow]]
The operand may list only items without spaces – to include items with spaces, use a reference to an array e.g. prepend the last three short days of the week to the list
[list[Days of the Week]!prepend:3{Days of the Week!!short}]