Sorry, I meant in the Map Creator - the idea being that if I can plot a route offline at home/wherever using the Map Creator which is easy to browse and switch maps etc - to create a complex route, and then upload it to the memory card. So of course when creating a long route it is easy to mess up (yes, I should probably save more regularly), but say I almost complete a route but then I decide I want to move some at or near the start. For me it is much easier to make the route using the luxury of the Map Creator rather than on the phone with a smaller screen.
As it is just a gpx file I could just use an online creator (e.g.
http://www.marengo-ltd.com/map/) - it has the ability to move /insert/delete waypoints but it would be very nice to be able to use it in the Creator with full screen browsing and switchable maps.