Hello,

On Tue 28 Dec 2021 at 09:58AM +01, Michael Albinus wrote:

> Sean Whitton <spwhitton@spwhitton.name> writes:
>
>> I'll see if I can implement this more complex thing and get back to you.
>
> Yes, please do.

I've got it working.  Please let me know what you think of the attached.

-- 
Sean Whitton