Automating a widget launch
Popup Widget 2 can help. See my answer for How do I launch a widget from a shortcut on Home screen? for its know-how. 

Once you're done adding your widget in that app, in your automation app, there should be an option for you to launch a shortcut. Choose Popup Widget 2 shortcut &rarr; your widget. 

You can also use Short Launcher app to treat the Popup Widget Shortcut 2 as an app which may help in automation.