The standard MovieClip class just supports textures, no display objects — so it won't be able to help you there.
However, when I wrote the Adobe Animate extension, I created a helper class that extracts all the frame-based logic of the MovieClip class into a separate MovieBehavior class (similar to the ButtonBehavior introduced with Starling 2.6).
It can be found here:
With the help of this class, it should be easy to create you own new MovieClip variant that takes any list of display objects and displays them subsequently as frames. You can even add things like frame callbacks, etc.
Is that what you were looking for?