hawkeye126 on "Add widget to Admin widget area by default"

I have a plugin that creates a widget and widget area.
Currently when the plugin is activated it adds the widget area as the first widget area and it adds the widgets in with the rest of the available widget.
To add the widget a user must drag the widget to the widget area.

How to I make the widget show up in the admin widget area by default?

Also how to I make the widget area the last widget area instead of the first (so it shows up at the bottom of the list of widget areas in the admin view instead of at the top)?