If there's any consolation, I knew you would bring this up :wink: In reality, I think the answer is that we have a lot more work to-do before we can really have multiple widgets on a page "for real"  The Two Viewer Widget examples duplicates _everything_ except the clock.  In practice, we would want multiple widgets on a page to share a lot more data, maybe even the same scene (but with different cameras).  So I agree with you that we need it at some point.

So I guess my "official" response is that if people need to do that now, use CesiumViewerWidget or a custom solution (but as far as I know, we haven't had any real request for the capability).  We will certainly address the multiple widget issue long term, and address it sooner if it becomes a priority.  Trying to provide it right now, via duplication, is not really the right architecture.  Is that an acceptable plan to you?