As an example, if I Retrieve Field Values in my workflow, and one of those fields is a List of items that a user chooses from. Based on what they choose I have a conditional.
Currently, I have to either copy and paste or manually type the text to match the text in the List.
It would be a huge time saver, and reduce on human error, if it were possible to pull the list items when changing the properties of Workflow Activities that use it.