This is a simple utility addon for site developers and designers that allows you to enforce a "flat" page hierarchy under a certain section of your site. Set the "Force Single Sublevel" page attribute on a top-level page of your site, and any pages added more than 1 level deep will be automatically moved back up to 1 level deep.

For example, if you set this attribute on an "About Us" page, and click the "Add Page" button from a sub-page beneath "About Us", the new page will be created under the "About Us" page instead of under the sub-page.

This is especially useful for new Concrete5 users (or non-technical end users in general) because many people have a hard time understanding the concept of page hierarchies, and if you don't have a robust drop-down menu system implemented, new pages can appear to get "lost" immediately after navigating away from them!