I've added it to https://forums.factorio.com/viewtopic.php?f=80&t=4682&p=35582#p35582 Planing, Cloning, Ghosting, Blueprinting and further...

Thank you! I'm very pleasantly surprised about all the suggestions regarding the map, as it doesn't seem to be quite reaching any of the potential it has!

As it came to no surprise to myself, I managed to get distracted and forget whatever I needed to do, at least 26 times today.

This gave me an idea - Map markers. When the map is open, you simply click anywhere to create a marker and bring up a "Naming" dialogue box (clicking anywhere else without ...