I'd like to modify the 'Add Page' button on the Dashboard toolbar to add new pages as a sibling of the current page (i.e. place in the parent page directory) as opposed to beneath the current page.

My reason: I currently use the 'replace with first link in nav' attribute to send users to the first section. Once they arrive on the first subpage, I'd like for them to be able to easily add a page to that section right there (and for it to properly reflect in the the side autonav).

I know that adding through the sitemap would be easiest, but that will simply be too advanced for my end users ( older professors).