in the security assist wizard (Webassist -> Security Assist -> Create Security Pages, go to the Manage Pages tab.
in the listing of pages to create, select the pages you don't want to create and click the trash Can (Delete) icon.
to foce security assist to create the pages in another directory, add the path to the name of the page. for example select the registration page, the file name will be set to:
you can add he path in front of that where the page should be created: