This choice will take you to a long page of List Definitions. From this page, you can select one of the orange tabs to expand that area and edit the information.
This is also where you can add any typing shortcuts, archive locations, Form of funds that can be received etc.
Most of the options are filled out upon setup and do not need to be changed often.
Few users have the authority to change these as they can cause major issues if configured incorrectly.
f you are unsure about this page, please seek help from your supervisor prior to making any changes.