Survey permissions
From LimeSurvey Manual
The survey permissions apply only to a single survey. If you want to set permissions for the whole system, you can use the global permissions system.
If you want to use the survey-restricted permissions system, click on the Survey permissions button located on the Settings menu.
To find out more about the survey permissions functionality, continue reading the [Manage users#Set permissions for a single survey|following wiki section]]. We recommend everyone to read the whole wiki page to better grasp the LimeSurvey permissions system.