Hi ,
For this functionality to bring in State details in the suggestions displayed you need to customise the PartMasterPickerSuggestable class that implements Suggestable.Basically the suggestion work with IE calls in the back-end using search-SystemWideSearch.xml
In the custom class you need to addParam to the task ( like LC State in the setTaskParams method ) and need to concatenate the raw-value of the Task-attributes (State ,etc). So the output becomes Partnumber / Rev/ orgname / <State>.
Regards,
Sriram Rammohan