Hide Dashboard Page from Menu
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            I have a package that uses a number of single pages in the dashboard. There are 3 pages in each section, which shows up in the drop-down menu in the dashboard. However, there are a few pages that I do NOT want to show up on this menu. 
 
How do I prevent any single page from being visible in a dashboard menu?
    How do I prevent any single page from being visible in a dashboard menu?
                    
$p = Page::getByPath('/dashboard/yourpackage/package-page', $version = 'RECENT');
$p->setAttribute('exclude_nav', 1);