If you need to edit your survey, you can do so through your group's management dashboard and clicking Surveys > Manage Surveys from the left-hand menu.
You can edit a survey directly from this page by selecting the actions dropdown and clicking "edit".
You can also edit a survey through its management page by clicking its title.
From here, you can click on the blue actions dropdown and select "edit survey"
You will have access to edit details, survey settings, and questions.
Under details, you will be able to change your survey's title and update survey description or instructions.
The settings tab will allow you to set open and close dates for your survey, determine visibility, or write a confirmation message thanking your respondents.
The last tab, questions, will allow you to create new questions, change the order of the questions, or update a custom field.