I don't know if you can already do this but here is my 2 cents worth as a very new user. I went and created a waypoint and called it truck and put the appropriate icon and all where my truck is currently sitting. What I want to be able to do is keep that waypoint and whenever I am at another location and I want to mark my truck, just edit it and pick current location instead of having to either type in the new location or create a new waypoint and type in truck and pick my icon and stuff. When you are in the location spot of the waypoint and click enter, you already get your up/down and left/right and your numbers. All they would have to do is put another little button and have it plug in the current location coordinates automatically. This could be useful for other things too but this is just what I noticed the other day while caching!