I certainly support this suggestion. It would be great, if you could implement this feature. Rename a short-time waypoint for just one flight-planning, so it has a meaningful name in the briefing pack.
As soon as a new flight(-planning) ist started, a new route created, or that waypoint is removed, SkyDemon could immediately forget that waypoint name.
Skydemon offers several options, what you can do with a user-generated waypoint, but unfortunately, you can not rename it - pity. If you could, it would be a major improvement for the use of the briefing-pack in my opinion.