increasing/doubling note durations without shifting later notes

I agree, and I think you helped make my point. I do not want these extra voices… it is Daniels’ technique that is requiring them.
I just want to insert music into the existing voices and then be able to adjust that music with the option to allow/not-allow the later music sliding around.

Anyhow, I’ll stop now… I think it’s as clear as I can make it.

Thanks,