Log into Discover and click on Settings in the upper right corner.
Click on Update Categories on the Account Setting Page. If you do not see this option, you do not have Master Access. Please contact your Customer Care rep at 800-748-0975 x2 if you need assistance.
Add categories by entering them into the box and clicking Add. Major categories are for broader topics, and minor categories are for narrower topics. You can also click on the X next to a category if you would like to remove it.