To reprocess a job,

1) click on the name of the data at the bottom of the dashboard. 


2) Click on the "more options" icon, and click "Reprocess"


4) Click on "Advanced" to expand the menu to  upload sentiment list, taxonomy, or stopword list when reprocessing, and click on "Reprocess Analysis". 


The dashboard will update automatically when reprocessing is complete. You will also get notifications of the status of reprocessing data.