This is a default mod form header element, however from version 2.5 (we go to 2.6 in the summer) non-required fields are shown collapsed form by default to clean up the interface - this may help, but need to check.
However I think this might be able to be hacked locally in the mod\readinglist\mod_form.php file just for the readinglist module
This is a default mod form header element, however from version 2.5 (we go to 2.6 in the summer) non-required fields are shown collapsed form by default to clean up the interface - this may help, but need to check. However I think this might be able to be hacked locally in the mod\readinglist\mod_form.php file just for the readinglist module