The "optional settings" wiki page (http://docs.limesurvey.org/Optional+settings) holds information about Limesurvey settings for certain parts of the programm that are to be set at the config.php file and are not included at the global settings.
A Spanish version of this page doesn't exist and needs to be created based on the english page.

Task steps:

• Create a user account at www.limesurvey.org. This can be used to log in at the wiki as well. After having registered, click the "documentation" link on the Limesurvey main page.
• Have a look at the english base page: http://docs.limesurvey.org/tiki-index.php?page=Optional+settings
• On top right, choose the option to translate the current english version and assign the new page a matching name and the Spanish language
• Translate the english page to Spanish
• When you are done, check carefuly if no settings is missing
• If you have any questions about a certain setting, ask it here, your mentor will be notified.
• When you are done, submit your work here (just give the link to the translated page).