I've followed the instructions for adding widgets to other pages but unable to have it show in the Widgets tab as it show in the Blog. Any suggestions to make it active on all other pages, current and future? I'd like to have drag & drop the same way it is on the blog.

Hi,

Read this... http://doc.silverstripe.org/sapphire/en/topics/widgets#adding-widgets-to-other-pages
You will find everything you need there.

I've read and done the instructions on that page. Widgets shows as a tab in the SS CMS Admin page for the blog page but not on any other page. How do I get it to show as a tab along with "Main", "Metadata" and "Google Sitemap" in the same drop & drag format as the blog page edit?

sounds like you have missed one of these bits...

First step is to add an WidgetArea to the Database to store the widget details. Then you have to edit the CMS to add a Widget Form to manage the widgets. An example of this is below

function getCMSFields() {
$fields = parent::getCMSFields();
$fields->addFieldToTab("Root.Content.Widgets", new WidgetAreaEditor("Sidebar"));
return $fields;
}
....
}

or

Then in your Template you need to call $SideBar whereever you want to render the widget

$Sidebar

or

you needed to do a dev/build?