Protect identification numbers/protectidnumbers: If enabled, page id numbers cannot be modified. New pages have an empty, unset identifier number. Useful when using an automatic course structure creation script.
No public pages/nopublicpages : If ticked, forbids non-logged-in access to public pages. Public pages are then readable only by logged-in people.
Protect the administration page/protectadminpage: If enabled, the initial administration page will be created in “protected from editing” mode
Navigation images/navgraphics: Enable or not the alternative images. By default simple arrows
Page format alternative images/pagerendererimages : Be careful with naming, it is the only constraint on the images so as to choose the look of your forward/back arrows. Png or JPG
next_button
next_button_disabled
prev_button
prev_button_disabled