Sorry Ron, I didn't see this post. I had the command calls in there because it seemed that was the only way I could avoid getting "Unknown command..." errors at the command line.
I've been assuming I'm getting those because I'm ending the Change properties commands or the layers commands wrong/ungracefully. that was my fix. Perhaps I'm mistaken. I don't know how the message at the end got left in there. I did have error checking in it but removed it, well not all of it, while testing.
J. Logan
ACAD 2018