Just throwing this out there for consideration:

It would be great to be able drag a couple radials out from nearby VORs and have them remain on the map however far I drag them out for visual reference, maybe with a little tag that shows the radial in degrees? For deroutements this would be very helpful; I find myself wishing I had this feature available to me quite often.

Another vote in favour of temporary drag-out radials during planning - I have a clutter of user waypoints defined for this purpose which I'd love to delete!