To be able to easily identify which Area Scheme an Area Schedule belongs to.
The area name of a new schedule gets the Area scheme in brackets, until someone renames the title and cuts that out. Then nothing!
You can use highlight in model button (slow and cumbersome), There just needs to be a read-only parameter in the Identity data that displays the scheme it belongs to.
In Revit 2018.1 this has been made a little easier with schedule browser sorting, but if you aren't sorting by this method, then it is yet another workaround.
Tags: #Scheduling, #AreaSchemes