Thanks!  I appreciate the compliment but it's really not so difficult.  It's just layers, display times and an attribute to remove or add to the previous layer.
 


I had this really weird idea that I might like to be a web page designer and I've been dabbling in animated GIFs since 1989(a) when Compuserve released the GIF89a version. In the past, I would have worried about the file size since most people were on metered internet plans but I didn't even optimize that one.  Damn I'm getting old!  This is all moot as I can see the writing on the wall...


 ...and my replacement is better, faster and already here.