Survey permissions
From LimeSurvey Manual
In some cases, the administrator might not want to give a user (e.g. a single-survey translator) global permissions because he would then be able to access all the surveys. For this purpose the survey permissions panel was created - to facilitate the allocation of permissions to different users without the need of using the global system of permissions. As a result, the translator can be allocated certain permissions that would allow him to edit only certain surveys.
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 following wiki section. We recommend everyone to read the whole wiki page to better grasp the LimeSurvey permissions system.