The Manage stand alone survey section allows you to view all your stand alone surveys. From this section you can
The main screen allows you to view all stand alone surveys, giving a friendly grid view of all your surveys
The search box will allow you to search your maps titles to help find maps you may want to edit.
The edit / delete survey options allow you to edit the stand alone survey OR delete the specific stand alone survey.
Note: Deleting a stand alone survey does not delete the actual survey, only the stand alone refrence