What is the 'First In Line' field used for on SHR:ConsolidatedList in Help Desk 5.5?

I see the new field First In Line on SHR:ConsolidatedList in Help Desk 5.5 but do
not know what it is used for. The related workflow tab does show any workflow
tied to this field. How is it used?

'First In Line' is used for sequenced tasks. When tasks are ready to be worked by the implementor, (it's at the
top of an ordered list of tasks and various other conditions that are met), 'First In Line will be set to "Yes." This
will show up in the Remedy Support console with a "Yes" value in the 'Ready' column.
This feature addressed the problem that sometimes an implementor would think he could start work on a task,
but he wouldn't know that it had a dependency on a higher priority task that was not yet closed.