Run existing app in app inventor window / arrangement / frame

Is it possible to run an existing app in an app inventor frame (arrangement / window). I know you can link a button to enable app inventor to run another app but I'd like it to run the app on only part of the screen, allowing me to use continuously seen buttons to select which app to display.



This certainly isn't possible in base App Inventor. In theory it might be possible on a new enough version of Android that supports multiwindow applications and you would need to develop an extension that would create a window and have the second app drawn in the new window, which you'd have to position above the current app's window and in the right location.