The standard All predicate is supported with an expression or a subquery. It may be used with a comparison operator or with the In / Not In or Like / Not Like predicates. When dragging an All operator into a variable, the following tree element is created.
Variable Creation > Input > Variables: SQL Elements pane - Logical > All
Any number of Columns and/or other expressions can be moved into the Expressions folder within the tree.
There are no special properties for the All operator.