On the Security - Permissions page, you can access the following functionalities:

To modify the assigned roles for a member, first select the designated app from the App drop-down menu, and select the member's entry from the list. Then, choose the assigned roles options from the panel on the right-hand side. Finally, click the SAVE button to confirm and save the changes. If you wish to discard the changes, click RESET.

To view the definition and specific permissions of each pre-designed role, switch to ROLES tab, then select the role options from the Role drop-down menu.