In order to edit the module settings, when logged in as an administrator, mouse over the arrow beside the title of the module. 

 
Select Settings. Or click the icon  at the bottom of each module. The following dialog box will be displayed:
 

From this page you can edit the title of a module, writing the new title in the appropriate space, and manage the module permissions for each security role.

To set the Permissions there are 2 possibilities:
- Click the check box  Inherit View permissions from Page. This way the module will have the same permissions as the page where the module is located.

- Or uncheck the above mentioned check box and select the users that can view and/or edit the module.
Click Update.