Allow extensions inline, and ideally custom widgets
As others have requested, please allow extensions back into the main page, instead of forcing them to be in a separate window. That defeats the purpose of putting everything into one window.
Additionally, please can we create our own widgets to incorporate? I've been building my own whisper client, optimized specifically for streamers (esp those whose hands are busy or who cannot alt-tab away from a game), and would like to show it in the dashboard. Since I can't do that as an extension (see above), I'd like to be able to create a custom widget, pass it a URL, and have that seamlessly iframed in.