Settings Tab

Settings tab of Data Tables by Supsystic includes tree main features:

Table search – enable search in a tables, that means if users use WordPress search field, the table content will be displayed as well.
Table rows saved per request – configure number of table rows which will saved per request (note, the preferred value is 400).
Roles (PRO) – choose role for users who can use plugin. Administrator is included by default.

Data Table Settings tab

These options you can customize as you need.

More information about Roles feature you can find in this article.
Also you can check all Data Table Documentation.