The Topics Tab allows studies to be classified and sorted under a specific topic. 

Click on the Topics Tab. 

On this screen, you may click on the desired icon - delete, edit or new.

Click on the green checkmark to either publish or unpublish a study.

Note:  When a topic is unpublished, all the information is still stored in the database, but that topic will not appear in the drop-down lists of topics.

Use of Topics is optional.