So i have this SharePoint 2010 Publishing site collection and i can create subsites under it simply by going to Site Actions > Create New Sites.

There's a button that says 'More Options' which gives me more options for the new subsite.

I get extra options like 'Permissions' and 'Navigation Inheritance'. I would like to add an extra settings option here.. (programatically using event receivers maybe). And also add a corresponding settings page somewhere in the Site Settings.

So my question is, if this is possible at all? If yes... then how?

I would ideally like to configure the navigation breadcrumb here...

Thanks!