I'd like to see the ring range distances displayed at the 12, 3, 6 & 9 o'clock positions. If this creates to much screen clutter, then I would like the option of selecting/deselecting each of these 4 positions. Maybe having the option of selecting each ring's color would be a better way of understanding each ring's distance instead of text?
I'd also like to have the ability to choose/customize at least one ring's diameter (I would create a 3 mile ring that would help visualize VFR minimums).
Andre'