Ciao Stuart

How does one form a url with parameters to go directly with prefill data for a node edit using the ID editor ?  Just to be clear, I am not looking to do an automatic edit, just make the workflow more efficient and accurate. 

I suppose you want to do that to provide it to your users, but if you want to do that for yourself, then the Mapillary plugin for JOSM (https://wiki.openstreetmap.org/wiki/JOSM/Plugins/Mapillary) makes adding Mapillary photo keys to objects really easy, I’m using that quite bit myself.

Have a good day,
Habi